Author Topic: RD 50 with a twist  (Read 5072 times)

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Offline tony2stroke

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Re: RD 50 with a twist
« Reply #90 on: September 08, 2018, 09:42:58 PM »
If I were you I would go to the nearest bike shop and order genuine little ends, pattern items like this I would avoid like the plague, little ends bearings is not a place to try and save money, it will cost more in the long run, engine bearings and seals are best kept genuine, IMO anyway.

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #91 on: September 08, 2018, 09:53:18 PM »
You're right of course Tony but the eBay seller did say these were made in Japan...and they were. Unless the box is fake, and that wouldn't surprise me!

Offline Motty

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Re: RD 50 with a twist
« Reply #92 on: September 09, 2018, 07:31:30 PM »

Hassle like that only adds unnecessary grief. Off course when it works right you are quids in

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Offline kawazonkey

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Re: RD 50 with a twist
« Reply #93 on: September 09, 2018, 09:37:34 PM »
It's not the end of the earth I have to confess. It's a doddle to do it...IF I had the right bearing  :D

Offline ggreen1959

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Re: RD 50 with a twist
« Reply #94 on: September 11, 2018, 10:04:27 AM »
It's not the end of the earth I have to confess. It's a doddle to do it...IF I had the right bearing  :D

Definitley the bearing? I trust you have measured the little end and checked for ovality. Just a thought!
Just keep riding.

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #95 on: September 11, 2018, 09:11:39 PM »
Yep it's the bearing!

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #96 on: September 24, 2018, 10:59:04 PM »
This is farcical. EBay guy said he send out a selection (clearly he is just grabbing these off a shelf and hoping they fit) I keep the one that is right and send the rest back. OK then. I get a little parcel today. ONE bearing, identical to the other two I have. Bit the bullet and got a gen Yam one on order from Fowlers. Unreal lol.

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #97 on: September 26, 2018, 11:24:12 PM »
The Fowlers package arrived today.





I can't fault them. The delivery was a day and the parts are gen Yamaha but the price is a tad steep!

Then this rocks up...



Sent totally free from a member here. You know who you are and a huge thanks for this. It matches my RD speedo and will be housed in an ally binnacle that I will get made up from a template. Another piece of the puzzle! In fact that's everything bar one item...an exhaust!!




Offline kawazonkey

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Re: RD 50 with a twist
« Reply #98 on: October 09, 2018, 11:02:06 PM »
Back to the popsicle.

Been trying various L shaped bits and bobs and the dent in the tank is coming out. Might not even need filler if I can get it 'just so'.



Then the clocks. OK so they are not exactly the same but for now they will suffice! Later down the line they will get some home made custom dials to match the purple colour. A good clean with my Dremel and a lick of paint...



Then I used my LC clock mount...



Brilliant! Now got both clocks hooked up with cables, one brand new, one old but cleaned up nicely. Still got issues with the small end. Has anyone tried heat on the conrod to get the bearing in properly as I'm stumped. Freezing the bearing and gudgeon pin had no effect at all!






Offline kawazonkey

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Re: RD 50 with a twist
« Reply #99 on: October 09, 2018, 11:03:20 PM »
Forgot the other pic!


Offline tony2stroke

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Re: RD 50 with a twist
« Reply #100 on: October 09, 2018, 11:14:22 PM »
This is fighting you every step of the way isn't it, I wonder if its the piston gudgeon pin that's causing the trouble, is it a after market piston and pin (china no quality control)

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #101 on: October 10, 2018, 12:38:24 AM »
No mate these are gen Yam parts from Fowlers. Real head scratcher here!

Offline ggreen1959

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Re: RD 50 with a twist
« Reply #102 on: October 11, 2018, 12:44:12 PM »
Does the gudgeon pin fit the bearing in the little end without the piston fitted? If it does its an alignment problem.
They should slide freely with no need to heat or cool them. :-\
Just keep riding.

Offline kawazonkey

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Re: RD 50 with a twist
« Reply #103 on: October 11, 2018, 09:58:00 PM »
The gudgeon pin and bearing fit the conrod perfectly and fit the piston too but the little tapers on the bearing are stopping it from going on. To their credit Fowlers have been nothing but helpful. They suggested freezing the pin and then using some oil on the bearing to see if that will help it fit. The conrod itself is the original Yamaha part...I'll get it on. Somehow lol.

Offline betty foRD

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Re: RD 50 with a twist
« Reply #104 on: October 12, 2018, 06:20:52 PM »
So with the pin in the bearing the pair won’t side together into the little end?

Ie nothing to do with the piston.
Rev 'em till they rattle