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General => Restorations Diary => Topic started by: kawazonkey on December 12, 2018, 08:29:05 PM

Title: The slightly ambitious drag bike project...
Post by: kawazonkey on December 12, 2018, 08:29:05 PM
I've finally got enough parts to start this ever so slightly bonkers idea. What with the little RD almost done and Elsie needing an entire engine I thought I'd try and find a frame to bolt my growing collection of forks, wheels etc onto. Was looking on eBay every night for something but they were all too expensive for me until a drag bike frame popped up with an opening bid of £40, RD250C I think he said. Collection only, so I contacted him and he said delivery was £25. I bid £41....and won it! The only bidder. As you can see the rake has been altered by heating and bending the frame a tad...and rad mounts fitted so an LC engine (or whatever) can go in at a later date. A LOT later date lol.

[attachimg=1]

Then I get a call from Peter and he says he has an engine I can use, but it needs cleaning on the inside. A deal was dealt and he popped over yesterday. With his help (ok ok mainly all him) we split the engine and yanked out the crank. I am now cleaning it all up and I'll nail it back together later on. The frame as it transpires is a RD400 Daytona one...worth considerably more than the £40 I paid for it!

[attachimg=2]

[attachimg=3]

I have a YZF 125 rear end for this and a Mito front and they bolt straight on. Probably going to get rear shock mounts welded to the swing arm and have a twin shock set up rather than monoshock.

[attachimg=4]

I also have some foot pegs, a choice of 2 seats and a Mito fairing...might use the top part only we'll see how it goes. Will probably use the Gamma carbs on this bike for now as the LC ain't going anywhere and the Allspeeds I got from Dusty. Need a Mito front wheel or any small ish front end and a fuel tank. Would like an RD one but again anything will do and it only needs to hold a small amount of petrol. I plan to enter the Super Twin GT bike class, basically for all twin bikes and you set the time you think you'll do the 1/4 mile in (half an hour?) then race against similar machinery. You need a licence (£48) and a doc's certificate saying you are fit (sorta) and of sound mind (doubt I'll pass then) then you get to demonstrate you can actually ride (yes!) and do burn outs etc and a 1/8 mile run (this is not at the doctor's btw) then after 2 actual races you get a full competitors licence. Also need racing leathers (check) a BSA approved lid (check) leather boots and gloves (check) and the willingness and ability to make a total arse of yourself (check).

More to come as I attempt to rebuild the engine and source the parts!

Alex






Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on December 12, 2018, 11:51:13 PM
Cool Alex  8) 

I look forward to posts on this 1
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 13, 2018, 12:00:01 AM
Cheers Butt. (stifles laugh). Thing is I am making this one a bit harder on myself as I want it to have a day time MOT. Peter did laugh and said 'it won't do roundabouts'. Very true so I will avoid roads with roundabouts...or any kind of sharp bend lol.
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on December 13, 2018, 10:36:28 AM
Cheers Butt. (stifles laugh). Thing is I am making this one a bit harder on myself as I want it to have a day time MOT. Peter did laugh and said 'it won't do roundabouts'. Very true so I will avoid roads with roundabouts...or any kind of sharp bend lol.


Your nuts Butt!   with a rake like that on the front end it should be a chopper, seen some RDLC choppers from Japan on Utube, good luck with it Butt, I eagerly await updates on this 1.
Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on December 13, 2018, 11:47:39 AM
This type of thing, but this one has the engine far too far back.

https://www.ebay.co.uk/itm/Yamaha-RD-Drag-Sprint-Bike/192752958497?hash=item2ce0f8bc21:g:VysAAOSwVHpcDTIh (https://www.ebay.co.uk/itm/Yamaha-RD-Drag-Sprint-Bike/192752958497?hash=item2ce0f8bc21:g:VysAAOSwVHpcDTIh)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 13, 2018, 08:32:08 PM
Yes sort of like that one but with the engine mounted as is...ie normal lol.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 15, 2018, 09:55:52 PM
I've started to clean up the crank and the engine internal casing. Going to finish it with a Dremel polishing part.


[attachimg=1]

[attachimg=2]

And the Mito front end. It needs a tidy!

[attachimg=3]

YZF rear end. That wheel is manky but I can sort it out. It has new bearings in it so shot blasting is a no-no.

[attachimg=4]

Been offered a couple of tanks now at very fair prices. Not sure to go for a cafe racer look or something totally modern. The seats I have are pretty trick and there is that Mito fairing as well...however that adds more weight. So perhaps a minimalist seat, no fairing or just a tiny one would be a better choice.


Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 15, 2018, 09:56:54 PM
[attachimg=1]
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 18, 2018, 08:03:36 PM
Following some sage advice I left the crank in paraffin and then dried it. Doused in oil and all good to go and back in the casing.

[attachimg=1]

Saw Dusty the other day and he has this TZ ally tank I wanted to see if it fits...

[attachimg=2]

Like a glove.

Better than this...

[attachimg=3]

So if I go for a period tank I need a period seat. The ones I have are far to modern so I'll keep my eyes peeled for on. Also borrowed an LC front wheel (cheers Dusty). Had to remove the discs to get it on but I almost have a rolling chassis now, just need to clean up and paint the rear wheel. I have a couple of tyres to go on that and I'm hoping a 150 section will squeeze on!

[attachimg=4]



Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on December 18, 2018, 08:13:16 PM
Still waiting to see a different tank and then I can decide what one to use!
Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on December 18, 2018, 09:32:28 PM
Technically I think there’s a difference between a rolling chassis and a chassis that rolls  :D
But to have it mobile and to be able to see how it sits is defo a step in the right direction.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 01, 2019, 07:48:38 PM
Got some cans of spray paint from the local pound shop...I wanted to see what the frame would look like in red. I like it so later on down the line it may (or may not) get powder coated. Respray cost a whopping £2...

[attachimg=1]

Still torn between a classic look or something more modern. The little seat was donated by Dusty (muchos gracias amigo) and the HUGE one donated by Peter (danke!).

[attachimg=2]

[attachimg=3]

With the TZ tank on it works nicely, but I do have another tank heading this way, a smaller curvier one and I'll see what that looks like with the small seat...

[attachimg=4]

Whatever happens both tanks are going to be used eventually and that ally TZ tanks is the business!




Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 01, 2019, 07:49:25 PM
[attachimg=1]
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on January 01, 2019, 09:06:32 PM
(Attachment Link)

These bits all look good together  8)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 03, 2019, 10:55:04 PM
The engine is going back together. I had to take the crank out for a second time as I neglected to spin the bearings whilst it was in the paraffin as Peter reminded me!  So, re cleaned, soaked in Motul, back in, sealed and bolted up.

[attachimg=1]

I need to get some longer allen bolts but so far so good. The barrels got a damn good clean too...

[attachimg=2]

[attachimg=3]

Then the bolts. One done, seven to go lol!

[attachimg=4]







Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 04, 2019, 10:20:50 PM
Started the forks today. They don't leak and work fine but there is a little pitting and I think I can get rid of that.

[attachimg=1]

[attachimg=2]

Then there is that wheel...it's cleaned up ok and in this pic it looks great in primer but there are still blemishes so I'll get the wet and dry out again! If I had a tool to extract those bearings it would make life so much easier but they cost a bit! Ordered a YZF front wheel for a bit of symmetry. Only snag is the wheel spindle size. Rather small on a YZF, very fat on a Mito! Might need to get the spindle hole widened so I can use Mito bearings etc.

[attachimg=3]



Title: Re: The slightly ambitious drag bike project...
Post by: GAZZATT2 on January 04, 2019, 10:29:45 PM
whats special about the wheel bearings is in not push inner sleeve aside and tap out bearing or
put a rawl bolt in bearing and tighten up and know out with drift from other side ?
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 04, 2019, 10:35:58 PM
Erm.

Think I know what you mean...thing is if II can get them out I need new ones after...and these are new. Yes they are only about a tenner a pair but even so, that tenner can be put to better use! I'll just carry on for now as is. One day I'll invest in the correct tool.

Cheers for the advice though mate!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 07, 2019, 10:46:58 PM
Had a go at the rear disc today...

[attachimg=1]

[attachimg=2]

Despite my best efforts it either needs a skim or the nearest bin and a better one found!

Piston circlips arrived so one piston is on...

[attachimg=3]

and the bottom yoke got a polish, top one painted in gloss black.

[attachimg=4]



Title: Re: The slightly ambitious drag bike project...
Post by: Motty on January 08, 2019, 06:35:19 PM
Whoops I've missed this topic, it seems to be coming along at 100mph

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Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on January 08, 2019, 06:43:53 PM
Yeah, he's not dragging it out  :D    (get it)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 08, 2019, 09:49:59 PM
haha!

This should be a quick one as I have about 90% of the parts in the workshop. A running engine should be feasible before the end of the month, the chassis will be done before then. Little things need sourcing like coils, footrests and brake/clutch levers. All available and fairly cheap...
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on January 09, 2019, 06:13:39 PM
Yeah, he's not dragging it out  :D    (get it)
Don't give up the day job

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 09, 2019, 09:54:38 PM
This is maybe 10% my day job!

Got the forks back on and for a giggle put on this 15" spoke wheel a neighbour gave me. No idea what it's off but spoked wheels would really look the dogs on this bike!

[attachimg=1]

[attachimg=2]
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 12, 2019, 10:22:17 PM
Made a start on the seat today. Primed it (to show up any imperfections clearly) and glad to see there are hardly any.

[attachimg=1]

Then tried a larger spoked wheel...enduro drag bike anyone?

[attachimg=2]

[attachimg=3]

Then the rear wheel got a coat of gold...

[attachimg=4]



Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 14, 2019, 09:20:24 PM
That wheel isn't god enough, but I have a cunning plan. In order to cover the bearings I used 2 large washers and a nut and bolt. So they can blast and powder coat it without causing any damage!

Then I had a go at the engine casings. I was hoping to leave them in bare metal but some minor repairs are called for so satin black it is then...

[attachimg=1]

Then the seat...I trimmed the front edge so it is even and with yet more CAD I got the tank and seat to line up.

[attachimg=2]

[attachimg=3]

[attachimg=4]

Now that's more like it!

Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 19, 2019, 09:43:30 PM
Some engine casings are done.  The usual method (well, usual for me that is!), get them down to bare metal, repair any damage, etch primer, BBQ matt black then high heat gloss lacquer and you end up with a great satin finish...

[attachimg=1]

Then I tackled the front disc. It came up like new, very pleased with it!

[attachimg=2]
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on January 20, 2019, 06:30:52 AM
They look good. You have no problems with fuel or oil ruining the finish?

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Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on January 20, 2019, 07:00:32 AM
They look good. You have no problems with fuel or oil ruining the finish?

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I was thinking about that. Cases don’t get excessively hot but it’s i possible to keep fuel off them long term. Think 2K paint or lacquer is a must really but then again I’m not up to speed with modern fuel defence mechanisms!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 20, 2019, 08:07:34 PM
Never had an issue with oil or fuel. Guess the high heat lacquer is pretty resilient.

Finished the other one today...

[attachimg=1]

[attachimg=2]

I do need new metal Yamaha decals for the casings but they can wait...they cost money lol. Wheels are off being shot blasted and powder coated. I didn't like the gold they had so opted for something else...and I am waiting for some gaskets so next step is the seat and tank. Both big jobs so they might take a while...
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on January 20, 2019, 09:45:19 PM
Coming along nicely butt
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 23, 2019, 10:20:16 PM
The wheels are back from the powder coaters...rear is having it's boot put back on, I have ordered a matching front tyre too...

[attachimg=1]

Stunning work from Luke as usual and very well priced. Put the refurbed disc on too.

Then cleaned and rebuilt the sprocket mount with some nylocks from Dusty (ta matey).

[attachimg=2]

New tyre should be here tomorrow so hopefully an actual rolling chassis very soon!

Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on January 23, 2019, 10:28:38 PM
That wheel looks nice  :)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 25, 2019, 07:43:14 PM
The front tyre duly appeared so that is off being fitted and I picked up the rear at the same time. Then an entire rear brake turned up, it looked pretty poor...

[attachimg=1]

But it turns out all it needed was a damn good clean. It's like new now. Even the pads are ok. So...put the lot on then...

[attachimg=2]

[attachimg=3]

[attachimg=4]

I seem to be missing a spacer. Might have something that will fit!

Then Dusty's seat. I drilled out a hole fitted the light and had a test fit.

[attachimg=5]

I like that! Now it's being painted...

[attachimg=6]





Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on January 26, 2019, 04:48:33 AM
Why a light ?
If you put on a rear light you need a front...unless you’re racing in which case you don’t need either !!

BFN ....Confused from Oxfordshire!!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 26, 2019, 10:57:15 AM
Day time MOT ring a bell? lol. I do want a brake light on it...and I want it to look like a road bike...(sorta)
Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on January 26, 2019, 01:28:01 PM
Day time MOT ring a bell? lol. I do want a brake light on it...and I want it to look like a road bike...(sorta)

Absolutely!!

Daytime MoT must have no lights or all lights....means includes brake light....

You can’t put a brake light on a bike without the rest of the lights. Indicators is separate topic .
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 26, 2019, 09:31:07 PM
I know Peter. It will be removed for the MOT, then put back on... :D
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 30, 2019, 07:33:38 PM
Still not got the front wheel back...but it is moving along. The rear wheel is on with the correct spacers...

[attachimg=1]

[attachimg=2]

Need to get a locating bracket for that brake hose!

Then some goodies rocked up...

[attachimg=3]

The front wheel needs new bearings so I also invested in a puller. We'll see how that goes later...

Then some footrests arrived...

[attachimg=4]

And they may well fit just here...

[attachimg=5]

Just need a few little bits now, throttle tube, cable...kick start would be nice and the right hand switchgear (to mount a throttle on!) eBay beckons....dammit

Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on January 31, 2019, 08:13:37 PM
Picked up the front wheel today and then wondered howto get it to fit. Clearly I need spacers making up but after a look in my washers box I found this...

[attachimg=1]

It's made out of rubber but it is an exact fit. So all I need to do is take that to the engineers and get them to machine a couple.

So now I have a (sorta) rolling chassis...

[attachimg=2]

[attachimg=3]

And add some clothes...

[attachimg=4]

I have almost finished the seat unit, just some more lacquer and the black stripes to do!

[attachimg=5]
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 01, 2019, 09:00:10 PM
Seat is done bar some foam. Might want a smidgen of comfort! And the new levers turned up.

[attachimg=1]

[attachimg=2]

[attachimg=3]

Looking more like a bike every day now, but bleedin' 'eck it's very long!

[attachimg=4]

and...'Santa Pod drag racing strip' is an anagram of 'Satan's dog will eat your child'   :D


Title: Re: The slightly ambitious drag bike project...
Post by: Teazer on February 04, 2019, 03:30:39 PM
Fun project.  Are you running in a "run what you brung" class with not a lot of rules?  The class we run in the US is 1/4 mile and has different classes.  We have run an RZ350 and GT750 in "Stock" class for their engine size and building a new RD350 to run in "Modified" and a GT750 for "Altered". 

What I found was that once you start drag racing, you very quickly want more power, less weight, less suspension movement, lowered, more power, less weight and so it goes on.

We also need a rear light for night races and if you race at night, that will be a requirement, so it's good that you have one.  If you don't get on with drag racing, get the steering head pulled back to stock and replace the top frame tube and you would have a need street bike.

If you like drag racing, get it lower and think about making a carbon fiber copy of an RD tank with a small fuel cell inside.  You only need a couple of pints of fuel for a run.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 04, 2019, 08:35:44 PM
It is a laugh doing this one! The classes here are a bit different from yours. I will be in the twin cylinder class and I get to race similar bikes. The rear light is there for the annual 'check' ie MOT we have.  And if there are any night races the track will be so well lit lights on the bike won't be needed
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 04, 2019, 08:41:01 PM
Tank needs a little more work...

[attachimg=1]

[attachimg=2]

Then I had a ponder about shock locations...

[attachimg=3]

About here could be right. Clearly I need mounts welding onto the swingarm. Perhaps a mount with 3 bolt holes to change the ride height? And shorter shocks to start with are needed.

[attachimg=4]

[attachimg=5]

But I think it looks good like that. Maybe a tad lower...




Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on February 04, 2019, 09:40:37 PM
Now that is an original idea Alex, It will look great with twin shocks on that swingarm, have not seen that done before on YZF125 arm, very  8) butt.

Don't forget the chain run before you decide where to mount the shocks, you don't want the chain eating the swingarm.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 04, 2019, 11:55:59 PM
Oh! Good point matey, didn't think of that!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 09, 2019, 09:37:46 PM
Not had a lot of time recently but I did sort out the gear lever. It was very bent, something the seller failed to mention...but a lot of heat and a big ol' hammer sorted it.

[attachimg=1]

Then a good clean up...

[attachimg=2]

Got me wondering if the foot pegs would go onto an LC footrest so I got some large washers to give it a go

[attachimg=3]

Then got one hell of a surprise...look what it says...

[attachimg=4]

So yes, YZF footpegs will fit an LC footrest. Just need some extension bar for the gear change.

Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 15, 2019, 08:19:17 PM
Peter popped round yesterday and quite a bit got done.

[attachimg=1]

Gaskets getting annealed...

[attachimg=2]

Knackered bearings out...

[attachimg=3]

New ones in...

[attachimg=4]

Some bits...he did leave some acid so the shocks will get a soak and see if that rust shifts!

[attachimg=5]

And after some gearbox tweaks the engine is being rebuilt!









Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 17, 2019, 08:29:54 PM
The shocks came out nicely, so I thought I'd get the coils off and have them powder coated

[attachimg=1]

[attachimg=2]

Slight snag as the coils won't come out! With the bottom part of the engine in I thought I'd do the clutch actuator, but surely this ain't right...

[attachimg=3]

The rod goes all the way inside the engine without hitting anything on the other side.

[attachimg=4]

Hmm. So after that minor setback I thought I'd have a test run with the twin shock set up.

[attachimg=5]

[attachimg=6]

I like that.  And it's not far off where the mounting lugs need to be welded to the swing arm. Just awaiting some gaskets and spacers now and I can crack on!









Title: Re: The slightly ambitious drag bike project...
Post by: Motty on February 18, 2019, 01:08:15 PM
I assume you have the part diagrams to determine what is missing from the clutch mechanism

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Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on February 18, 2019, 08:50:27 PM
I assume you have the part diagrams to determine what is missing from the clutch mechanism

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Yes, would be good learning exercise for Alex to figure it out for himself , so no hints like ‘what did you do with the clutch mushroom Alex ?’
 Ok ?
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 18, 2019, 09:05:27 PM
Problem solved....does help to have the clutch actually in...lmao


[attachimg=1]

[attachimg=2]

Looking snazzy...

[attachimg=3]

[attachimg=4]
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on February 18, 2019, 09:19:31 PM
I knew you would find the part diagram useful

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 19, 2019, 10:05:05 PM
Right. New sit rep.

Dusty popped over today and he torqued the clutch nut in place. Then explained that the plates have to go on in a clockwise fashion...and then suggested the friction plates should be soaked in transoil first so they are! Thanks mate, your help is invaluable.

And whilst we discussed both the Popsicle and this bike he noticed that the shock mounts on the frame had been welded up! I had been using the holes where the subframe bolts onto. Ooops. This opened up a fresh discussion and I may just get this mono shocked instead. I have a YPVS shock so that can be used. It may well be cheaper than opting for twin shocks too. So when some front wheel spacers arrive I'll get everything level (chain run etc) and see exactly what needs chopping off, aligning, drilling, welding and probably swearing at.

Cheers Peter, Tony, Dusty and everyone who's voiced an opinion/idea/thought or whimsy as it's all been great advice!
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on February 19, 2019, 11:42:46 PM
Nothing ever goes to plan does it butt  :-\   :(   :'(
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 20, 2019, 07:54:30 PM
Indeed not and it can be a pain in the butt, butt  ;D

So. Clutch plates back in, correctly this time. Hooked up the cable. Hot damn I have a working clutch!

[attachimg=1]

[attachimg=2]

I do need the 3 long thin bolts that hold the stator on, anyone got some?

[attachimg=3]




Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on February 20, 2019, 08:22:34 PM
Indeed not and it can be a pain in the butt, butt  ;D

So. Clutch plates back in, correctly this time. Hooked up the cable. Hot damn I have a working clutch!

(Attachment Link)

(Attachment Link)

I do need the 3 long thin bolts that hold the stator on, anyone got some?

(Attachment Link)


Butt Butt LMAO Butt   :D
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on February 21, 2019, 08:53:06 PM
Gaskets and that engine mount turned up today so first off, fit the mount. Then the barrels...

[attachimg=1]

[attachimg=2]

They went on quite easily, piston rings and me don't normally work well. Heads went on next...

[attachimg=3]

[attachimg=4]

Then the carbs. Some folk say LC inlet rubbers won't fit an RD some say the opposite. Well, they DO fit!

[attachimg=5]

The wheel spacers are en route so next step is get that front end done and size everything up.



Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 01, 2019, 07:47:39 PM
The wheel spacers arrived today. Custom made for the Mito forks and stunning to look at. So they got squeezed in...

[attachimg=1]

Then the wheel went on

[attachimg=2]

[attachimg=3]

Next I wanted to get the chain clearance right. Using the perennially popular CAD method (pun intended) there seems enough room now. I can easily adjust things later on. Then the second exhaust got a quick clean...

[attachimg=4]

And I had a trial fit. Got an idea of how to mount these without having to resort to welded on brackets.

[attachimg=5]

And the kill switch is on!

[attachimg=6]

If I get some time tomorrow I'll test my mounting theory...notice I said 'theory'... :D












Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 02, 2019, 07:50:20 PM
Using a bit of MDF I knocked this up.

[attachimg=1]

[attachimg=2]

[attachimg=3]

If I replicate that in some ally, perhaps with holes in it for extra lightness, and have it angled at the top so it moulds around the frame...it might work. Best I can think of at the moment. The foot rests have no proviso for an exhaust to mount onto...Any thoughts?
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on March 02, 2019, 10:19:35 PM
There does seem a shortage of suitable mounting points

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Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on March 02, 2019, 10:51:01 PM
There does seem a shortage of suitable mounting points

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Yep. Alex just needs to get an appropriate one welded on frame and pipes in conjunction with footrest finalisation.
Need a fixing including resilient mount close to the pipe to constrain it’s movements in all axis.

You sometimes see extra stinger/end can supports that vaguely resemble his tie bar arrangement but it’s not suitable for a main section support.


Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 02, 2019, 11:21:53 PM
Alex does realise this but he wanted to get the pipes on to see what they look like lol  :D

And a trip to the engineers beckons not only for this frame but for the popsicle too...
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on March 03, 2019, 09:49:02 AM
Can you use a strap like I had on my 200, here is a photo so you know what I am talking about, it worked fine for me, may work for you, I used a couple of rubber lined P clips on the foot rest hangers to secure strap to frame, simples.

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 03, 2019, 07:49:31 PM
That would be a good short term option Tony!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 04, 2019, 09:31:26 PM
Might even be the long term option!

The coils turned up today albeit with only one plug cap but no worries I have some new ones.  Snag #1...

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Chipped and the NGK logo should be in white. It isn't. However I contacted the seller who was very happy to help out. In fact he checked all his new stock and to his surprise they are all like that. However he has some old stock that are fine so he's winging them out to me. Nice to see a genuine seller out there!

Snag #2...

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With the coils on the tank won't fit! I have tried putting the coils all over the frame and not a chance. There are other options like under the seat so that might have to do. Means some bloody long HT leads lol. That or go for the modern look and try to find a different tank with a fair bit of space underneath...


Title: Re: The slightly ambitious drag bike project...
Post by: betty foRD on March 05, 2019, 02:35:50 PM
What about in between and using the unused RAD mounts? Looks like there would be plenty of room there.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 05, 2019, 07:27:00 PM
Good idea Peter but Dusty pointed out they are welded on wrong. So with a little 'persuasion' I bent them back and now they fir sung and the tank goes back on!

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And then put on some new exhaust studs. The engine had 2 initially and 1 was bent lol.

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Also thanks to Tony's suggestion I ordered 2 P clips for the exhausts...cheers for the tip matey!

Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on March 05, 2019, 08:22:41 PM
Hope it works for you Alex, I used 2 end can straps for the exhaust also rubber lined, can't remember what they were from, just looked for the cheapest on ebay that fitted the diameter of the middle of pipe that had rubber lining, no problems with the heat melting the lining  :)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 08, 2019, 08:12:11 PM
Good advice butt.

Ordered the P clips and they arrived today. Nice and simple and that will suffice for the moment.


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And Dusty's old YPVS shock is ready to go on...

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Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on March 09, 2019, 05:02:51 PM
Not quite what I meant Alex, the Pclips (rubber lined ones) were only supposed to go around the footrest hanger, then rubber lined exhaust straps around the exhausts, that set up is going to push all the exhaust vibration through the bikes frame, I should have explained better.

The rubber lining to help stop any vibration and any damage to hanger bracket also allow some movement.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on March 09, 2019, 09:59:58 PM
Oh I see what you mean now. No problems I can drill and mount them elsewhere if need be. For now they are just there to hold the exhausts on. I probably will get some proper mounts welded on when the frame goes off to the engineers.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 02, 2019, 09:46:12 PM
Finally found a few spare minutes and cleaned up the stator. Turned out very well

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But I am perplexed by the three mounting screws. Found a bolt with the correct thread and it screws in just fine...

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Won't actually fit the stator holes though!

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Any ideas?

Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 10, 2019, 09:59:28 PM
Made a start on the Allspeeds today. Both are rusty but only the right hand one has any serious dents. A lot of sanding down and the left hand one got a coat of BBQ paint!

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 12, 2019, 09:55:32 PM
One exhaust all done and back on the bike. I am chuffed with the way it turned out!

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 18, 2019, 09:17:33 PM
Got some more done. Had a think about the foot rests and where the pipes need to mounted. I reckon once some correct size tabs are welded onto the frame for the foot rest mounts the exhausts will bolt onto the foot rest hangers.

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Then a bargain rev counter arrived. Dented but all fixable...

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I took the steering damper off the Popsicle, that idea was doomed from the start, and I'll use it on this bike. I have ordered a mount to clamp onto the fork.

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Then exhaust #2 was ready to go on...

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And this is how she looks now! The twin shock idea is back. A bit of strengthening on the frame mounting points and some tabs welded onto the swinger...should work.

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Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on April 18, 2019, 11:34:54 PM
Looking good butt  :D
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 21, 2019, 08:32:58 PM
Thanks Tony!

Got my throttle cable from Norbo (ta matey).

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Then carried on with the rev counter repairs...

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Job done!





Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on April 21, 2019, 09:19:44 PM
That Tacho turned out nice  :)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on April 25, 2019, 08:32:33 PM
Thanks Tony and it has the handy neutral light in it!

My mount for the steering damper turned up so I loosely assembled it...

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Now that should work! Then the new exhaust tips needed fitting. Called for some drastic surgery.

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I also got a new rear brake pedal. Turns out they are cheaper than used ones! And my billet foot rests can finally see some action...

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Almost at the stage when I can try to start her. Few electrical bits needed and the carbs rebuilt but that's about it!
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on April 25, 2019, 09:01:04 PM
Its really looking like a drag bike now  8)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 05, 2019, 09:17:58 PM
So close to firing this engine up now. Thanks to Merv I got this...

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Cheers mate! Wasn't fussed about the condition as I just wanted it to hold the throttle tube in place. A little refurb and...

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...ready to go on.

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With that done and the cable from Norbo in place I just need some carbs. I'm getting a 'loaner' set and as soon as they arrive I'll attempt to get the motor running...but I won't be heading out onto the highway just yet. A front brake might come in handy and of course I need the footrest tabs welded on and the shock mounts too. Then, apart from some paint, she'll be ready for Santa Pod!
Title: Re: The slightly ambitious drag bike project...
Post by: mervin on June 06, 2019, 06:21:37 AM
Aha a use for the redundant bits from the shed.  I did not have a complete set of innards left so good you can use it.

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 06, 2019, 09:42:34 PM
It's ideal Mervin. Got a kill switch on the other bar and it's all I need!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 10, 2019, 09:42:11 PM
The loaner carbs arrived today. Brand new and (almost) Mikunis.

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And I picked up a battery from Dusty (thanks matey!). I am informed it only holds a charge for an hour or so but seeing it only needs to work for a minute or so at a time, that'll do just fine!

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So I now have everything I need to start the engine. I will make a basic loom and I'll need a remote fuel tank (I'm sure I can cobble something together) and then give her a kick and see what happens.

No...I won't forget to add oil, and both types!
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on June 10, 2019, 09:56:17 PM
 :)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 18, 2019, 09:13:27 PM
I've moved Elsie back again to get on with the drag bike. First fit the loaner carbs...

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The cone filters are just there to keep any crud out, I'll use pod filters when I get some. Then hit a snag as the throttle cables are too wide to seat into the tops of the carbs. Hmm. I did find an ideal place to site the battery though...

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Then came across more snags

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Front wheel doesn't align. I need to get a small section machined off and a spacer made for the other side. Not a big deal really.

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The sprockets don't line up either so some more pondering is called for. And I need to make a small loom to connect the battery to the kill switch, coils and generator. So I think I'll get the forks and wheel over to the engineers place, then while they do that I'll drop the engine back out and take the frame and swing arm there for some mounting lugs/brackets to get welded on.





Title: Re: The slightly ambitious drag bike project...
Post by: Motty on June 19, 2019, 09:17:41 PM
So near, yet so far

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 24, 2019, 08:55:19 PM
What with the drag bike having the same front forks and yoke set up as on the LC I thought I'd need Mito yokes for this bike too...however I don't think I do. The YZF front wheel on it is narrower than a Mito one and the tyre is skinnier, so a Mito caliper just goes straight on...

[attachimg=1]

I do need to get a little shaved off the wheel and a spacer made but apart from that all is good. But it does mean I need another Mito caliper!!

Then after a call from Peter to discuss the loom idea I made a start.

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The coils both have orange wires coming off them and connect to the points...but the points wires are one grey and one orange. Hmm.

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Still I'm sure that can be resolved. As for the carbs and the cables not fitting I'll just have them on...but not actually adjustable. Doesn't matter really as the engine only needs to idle. So I'm going to get some petrol tomorrow and add 2 stroke, fill the engine with oil and hope for the best!

Just realised I need a temporary fuel tank. Anybody made one? Maybe an upside down plastic bottle with a tube in it would suffice...




Title: Re: The slightly ambitious drag bike project...
Post by: Motty on June 24, 2019, 09:21:06 PM
Good news that this project is coming along
The orange and grey wires from the points identifies the left/right points
Fingers crossed for an easy start up

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 24, 2019, 10:34:22 PM
Cheers Motty.

Just had another chat with Peter and he confirms what you say. I'll be chuffed to bits if it runs!
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on June 25, 2019, 11:47:08 AM
This is what I did Alex

Make sure you put a small hole at the top of the bottle so it can breath

O and remember to block that hole with your finger when filling it with petrol

1 more thing, if the offset of the 2 yokes is different on this same as the LC, then leaving it as is will not let the suspension correctly, as the forks go up they will tighten, you have to have the same offset butt.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 25, 2019, 09:26:24 PM
Thanks for the Fairy Liquid tip! I know what you mean about the yokes Tony but this will be ok. Wait and see the before and after pics! It's hard to explain it in words but it will bolt together just fine.

Maybe  :D

But the wiring is all finished and the next step is check and double check everything is bolted up properly. Fit the carb cables albeit temporarily and add oil...oh, best charge the battery too! If she fires up (if...what am I saying!)...when she fires up I'll get a quick video of it all happening, or catching fire or exploding. Then it's take it all apart again and off to the engineers for the welding-a-thon.

Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on June 25, 2019, 11:26:49 PM
I look forward to the vid  :)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on June 30, 2019, 09:32:44 PM
Sorry everyone no internet for 2 days now...

Sit rep then. Having issues with my truck and if that breaks down I can't look after my mum so this is a priority. The rear prop let go. Repaired. Starter motor quickly followed. Got a new one. Middle prop went bang and I mean it broke!! I had a spare but it was too long so the local engineers chopped it down and welded it back together. Took it to Feltham Propshafts and they bench tested it and declared it so badly done it's scrap. Now that really surprised me...so I got another prop and they cut it down and balanced it and that went back on. By now the costs are spiralling out of control I might add...then the bloody transfer case mounts decide they want to join the party so I have ordered more. Spent what spare time I had today 'adapting' something to replace the mounts and so far they are holding up.

I'll get back to the bike asap, honest!

Alex
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on June 30, 2019, 11:37:09 PM
It never rains but it pours butt, chin up
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 09, 2019, 12:47:57 AM
Another sit rep.

New transfer case mounts are on and the problem is even worse. Sounds like the gearbox and rear diff are going to explode. Got back under the truck and wobbled the front prop. Then I heard the clunk that I hear when driving. Now that is odd as in 2WD it's not engaged. Removed said prop and drove a little. Noise vastly reduced. Hmm. Drove her down the road. No gearbox/diff exploding sounds. It's an engine mount gone for sure. Ordered another. So while I await that I have just gone out and got the jerry can filled with petrol. Engine start up date is now Wednesday!
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on July 09, 2019, 06:43:44 AM
I hope you have now solved the truck issues and can now get on with the priority jobs

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Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 10, 2019, 09:34:11 PM
So today was the day. Put it in neutral, oil in. Made a temporary fuel tank, petrol and 2 stroke in that. Put battery on charger and went to make a coffee. Come back and the battery is hissing and spitting water out! OK, unplug the charger. Now I was wondering if the battery had any charge at all to start the bike so I thought I'd check I had a spark first. Unscrewed plug and put it on the engine fins and turned on the kill switch. Went to kick her over and...

...seized. The kickstart wouldn't move at all. Maybe she's not seized but something is amiss. Next job is heads and barrels off and have a look I guess.

I am a tad disappointed to say the least...oh well.
Title: Re: The slightly ambitious drag bike project...
Post by: Motty on July 10, 2019, 10:16:06 PM
Bugger

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Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on July 10, 2019, 10:20:22 PM
AW MAN!  I would try and turn engine over on the crank first "gently" trying to turn both ways first, take off stator cover and try and turn it there, it could be something to do with the kick start mechanism mate, easier to start there I think, if the crank turns then you know to look at kick start.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 10, 2019, 11:18:52 PM
Yep. My seized idea is almost certainly wrong but that's what it felt like at the time. I'll get the clutch case off and have a look...
Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on July 10, 2019, 11:41:09 PM
Should be easy fix, fingers crossed for you.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 11, 2019, 07:31:05 PM
I think I see what's happened. How it happened is beyond me. That cog has moved...

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Title: Re: The slightly ambitious drag bike project...
Post by: tony2stroke on July 11, 2019, 08:38:27 PM
That will be it then Alex, nice easy fix  8)
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 11, 2019, 08:42:49 PM
A big sigh of relief here I can tell you!
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 17, 2019, 08:17:23 PM
Dusty popped over earlier today and got the nut off...but then we couldn't see anything wrong. So why the kickstart jammed is a mystery. However I do need a washer and a new locking tab. Not a biggie. But the engine will be coming out to have new crank seals. For the sake of £25 it seems idiotic not to do this. But one thing he said (as have others) sank in a bit. Doing 3 bikes at the same time is hard enough. Doing it on a very part time basis is even harder. And doing it on a budget of zero is nigh on impossible. Seeing I want a bike, any bike, on the road asap I have decided to moth ball the drag bike and the LC and just concentrate on the Purple Popsicle. This will have a day time MOT and all I need really apart from some welding is a carb. Trying to find one is harder than I thought though. There are 2 types and of course the one I need is the rare one! Fingers xxd I can find one.
Title: Re: The slightly ambitious drag bike project...
Post by: kawazonkey on July 18, 2019, 08:32:38 PM
Right.

The engine is out, partially dismantled and is on the work bench. The bike is now at the back of the workshop with Elsie.

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And the Popsicle takes over...

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