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Does anyone know the amount of rear wheel travel a RD400 swingarm will provide?
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Aircooled RD Tech Help 250cc and Above / Engine stand RD400
« Last post by Clark Fergie on Today at 11:22:35 AM »
Hi , has anyone built an engine stand to use on a work bench? I’m thinking to trying and any guidance is appreciated!

Cheers


Sent from my iPhone using Tapatalk
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Hi Neil,  I have not done this swop but, I think the issue might be clearance on the exhausts at full extension.  You can experiment with spare shocks on the stand or, if you want to try different lengths, get some wood strip and drill holes to fit on the shock mounts. With the shocks removed, you can see how the fit goes at any length you want to try with the wood, just allow enough for the end eyes of the shocks.  ;)  Cheers

5port
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I suspect that the 521/522 UK bikes might possibly be in build batches because, there are many individual country models in the Europe range. Even the frames come in several distinct versions, the UK one is one of 5 Europe versions (but the 521/522 partsbook shows them as 360 part numbers. Think that might be error, the carbs listed are not 522 and jetting shown is wrong.  However, the gbox has the correct 521 parts listed.  I suspect that the partsbook I have copy of was issued too early?).  Any thoughts Betty?   :)

5port
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Hi, if you recall  I started a post about a rd350b I brought which had a connection to the Scottish tank regiment. The frame number on that was 521 0009** . I won't mention the rest as it's not mine anymore but was recently on eBay and I think he's a club member.

Yes, remember well.
The overall 521 B  numbers and dates are clear. The only work to do one day is to try and work out which groups of numbers came to the uK. Cluster Analysis of living UK Bs VINs should help with that.
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When you fit the longer RD400 swingarm into R5 / RD350 frame - What shock lengths do you use?

The standard length of a RD 250 / 350 shock is eye to eye is Max Length 12.48? Min 10.08?
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Hi, if you recall  I started a post about a rd350b I brought which had a connection to the Scottish tank regiment. The frame number on that was 521 0009** . I won't mention the rest as it's not mine anymore but was recently on eBay and I think he's a club member.
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Aircooled RD Tech Help 250cc and Above / Re: MIXING 360/522 Carbs
« Last post by stukey on October 20, 2018, 10:26:13 PM »
Mr 5port is right about original carbs working on original setting on original bikes.The only problem is that was 40 years ago.Fast forward 40 years of careful owners the fact we now use different fuels and oils and have 40 years of wear and tear.As i have said many times before ::) treat original settings as a guide and starting point but do not take as gospel. The good thing about having information from a friendly yamaha dealer. Is that even fully re-built bikes do not give out the claimed figures put out by yamaha ::) ::). I am no expert on carbs, but after consultation with my friendly ocd engineer. I am told that the 360 bowls will not work on 522 carbs as they do not have the necessary drillings and castings to match, so you will need to refit original bowls :)
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Other 2 strokes / Re: YB100 Restoration.
« Last post by kawazonkey on October 20, 2018, 10:22:16 PM »
You can get a full set of Allens for your engine, or even for  your entire bike off eBay but I would avoid that. The cost per bolt is crazy. Try a local place and get a mix pack of them, cheap as chips! OK OK chips aren't that cheap these days but you know what I mean...
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Skill centre / Re: Right hand Mirror Thread Repair
« Last post by shaunthe2nd on October 20, 2018, 09:50:09 PM »
Did you find out the price they want?
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