Recent Posts

Pages: [1] 2 3 ... 10
Restorations Diary / Re: RD350'R' Cafe Project - Winner!
« Last post by KGR33N on Today at 01:05:09 PM »
Well done really enjoyed seeing it in the magazine and will take time out to read this thread thoroughly.

How do I get to see the pictures on the thread on an I pad as they dont appear due being loaded through Photobucket........????
The Piston Broke / Re: No sheds..
« Last post by KGR33N on Today at 12:47:25 PM »
twoshedsdown or minustwosheds
Aircooled RD Tech Help 250cc and Above / Re: 400c 65mm pistons
« Last post by midlifecrisisrd on Today at 12:35:16 PM »
Cheers for that

Aircooled mitakas from pjme ordered this morning

It had ypvs pistons in it with the tang still intact😣

They looked ok other than some scoring on the inlet side so best to replace

No point throwing a new crank in then skimping on pistons


Restorations Diary / Re: Out now in 'Practical Sportsbike'...
« Last post by 5port on Today at 12:27:26 PM »
It is a great advert for the bikes and, I think you are brave to put it on show.  :) :)
I like the way you have used mostly original Yam parts, things like the original RD steel brake caliper that was the same as the '74 TZ750, and the '76 onwards TZ250/350 etc, are great.   ;)
Thanks for showing!   :)

The Piston Broke / Re: No sheds..
« Last post by T reg angst on Today at 12:20:51 PM »
Shedhead no more.......
I’m going to consult an old guy who knows about this stuff.

Someone else on here then?  :)
Aircooled RD Tech Help 250cc and Above / Re: 400c 65mm pistons
« Last post by 5port on Today at 09:15:02 AM »
Hi guys, what's your recommendations on pistons

Are the cruze image or forseti ones any good


Hi Steve, try a search back for the piston debate.  Most of the info is there.  The big issue is probably what type of use you want them for?  A standard road engine is best with an OE Yamaha RD400 piston but, they are expensive now and, 65mm is the largest oversize.  Remember, the 400C/D have a front cut-out at the bottom of the skirt and, the 400E/F (CDI) does not.  Other pattern  Aircooled type pistons are the cruze and PJME aircooled.  All these should give good standard performance and quiet running when fitted in a good bore with 1.5 thou inch skirt clearance (Yamaha spec).  Most other pistons are more or less different to the OE Aircooled and most are designed for liquid cooled engines but, can come in oversize upto +2.5mm!  :)     350 LC (4L0, OE and pattern) are similar to 400E/F but 31K (350YPVS) is quite a different piston, it is designed for the bridged inlet port and needs to have the central inlet skirt tang removed for use in the Aircooled.  It is a great piston for modified engines and great value. Again, designed for LC with different spec.  Cheers!

Restorations Diary / Re: Out now in 'Practical Sportsbike'...
« Last post by stevie747 on Today at 09:02:51 AM »
Bought the mag, enjoyed the article about your RD! :)  Still say it is much more of a TR3 replica.   ;D  Cheers


Yes it certainly is more of a TR3 ;)  As I said earlier, they didn't follow the script of my original resto post on here, which says 'TR rep'.  They had access to this before the test etc. but decided to put some of the details into 'their own words'  >:(

Anyway, nice to get an AC Yamy on the front cover of a mag these days  ;D
As long as you buy a twin coil, for example - rz250, rz350, rd250lc et al then it will work. They all have wasted spark. The only issue you will/ may have is fitting an aftermarket coil in the space the original one came from. If your not too fussed about originality then that's ok
Aircooled RD Tech Help 250cc and Above / Re: Rust removal from tanks ?
« Last post by Sfbrain on Today at 08:49:45 AM »
Thanks guys, some good stuff there  :P

I've found this stuff ......

They say it leaves a layer of zinc phosphate on the metal as pre treatment for a sealant liner, but can be used without then applying a liner.

They also say it ont damage paint etc etc

I'm gonna give it a go  8)

Pages: [1] 2 3 ... 10