YZF426 - Which Cam Chain?

5 replies to this topic
  • Fantic340

Posted January 15, 2010 - 01:55 AM


Hi again,

stripping my yzf 426 since the history is unknown. I will be replacing the cam chain. I have seen prox and ybn cam chain on evil bay. I also found one from wiseco which i assume is best? Any comments or recommendations?

I have another question...is the cylinder bore nikasil coated? (hard chrome?) Or is it an ion sleeve in an alu casting? i am seeing "oversize" pistons on offer which i dont think work with nikasil?


Edited by Fantic340, January 15, 2010 - 02:37 AM.

  • rufusz

Posted January 15, 2010 - 03:15 AM


OEM Cam-chain (cheap from TT store :banghead: ) and yes it is Nikasil plated.

  • Fantic340

Posted January 15, 2010 - 03:29 AM


Is it possible then to use oversize pistons with nikasil?????

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  • grayracer513

Posted January 15, 2010 - 08:51 AM


You can over bore the stock cylinder up to 3mm, but it requires replating it. There are no oversize pistons from Yamaha for wear.

  • Fantic340

Posted January 15, 2010 - 11:30 AM


ok great, now i understand!

  • buzzgrizz

Posted January 15, 2010 - 11:34 AM


go with stock oem

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