Author Topic: The next project.  (Read 1002 times)

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Offline Bigusdickus

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Re: The next project.
« Reply #50 on: August 12, 2018, 10:10:40 PM »
Ok so this morning I took my very sore head out to the shed to take stock. The back shock is probably done for also, pitted shaft and the nitrogen canister has been vibrating against the broken bracket on the frame. The linkage is good now with all new bearings so one step forward as they say.

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Offline Bigusdickus

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Re: The next project.
« Reply #51 on: August 12, 2018, 11:57:02 PM »
Hi to all
Can any one explane Yamaha part numbers for me. I am looking at 490 swing arms on CMS to see if any
cross over, as I see it the first three numbers or letters are the modle but after that if the following
numbers are the same does this meen it's the same part ?

Cheers Rich.

Offline Devondan

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Re: The next project.
« Reply #52 on: August 13, 2018, 04:28:16 AM »
Generally they used the same part numbers for each part the key difference was the model numbers at the front, so a 1W3 1234 would NOT be fthe same as a 4V5 1234. 

A number of the American parts websites like partzilla have a function that lets you see what other bikes the part was fitted to.

As I recall the first year of the YZ 490 could be fitted with the YZ 465 swinging arm ( complete with shock, chain adjusters etc) there?s a few of those conversions racing in the Twinshock class down here - direct link monoshock is permitted so long as it?s aircooled and has a drum brake.

Like this one http://www.facebook.com/groups/253236531428956/permalink/1650124195073509/

Hope that helps a bit!
IT  400D - Trail riding
74 Montesa Cappra - Racing
YZ250 H - Racing
Norton ES2 500 trials
Norton 250 Jubilee - Road
Norton 350 Navigator (in boxes)
Norton 350 Single M50 (in boxes)

Offline Bigusdickus

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Re: The next project.
« Reply #53 on: August 13, 2018, 06:36:21 AM »
Cheers for that Dan
Sort of makes sence from what I have beem looking at.
My YZ is a1984 it has a more upright shock set up so I dont think
that will work.
Partziller nex then.

Rich