Wr426 valves

5 replies to this topic
  • gerryg

Posted April 29, 2009 - 10:43 AM


Hi, iv'e been riding my 426 for about a year now (I LOVE IT) and this past weekend 2 of the valves broke. Bike standing now. I've head that you can replace the titanium valves with stainless steel ones. Has anybody done this and is it worth it????? Please help.

  • grayracer513

Posted April 29, 2009 - 11:32 AM


Yes, you can. Simply use the valves, springs and retainers from a 2000 model YZ426. The job will be much less expensive.

  • honyam83

Posted April 29, 2009 - 02:54 PM


I've just gotten mine done with SS valves not much time on it yet but it run great. It cost about one third the price of TI valves. I got seals, keepers, cotters, springs, and valves for around $150 dollars. I got this all from hondaeastoledo.com.
Good luck

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  • TIG88

Posted April 29, 2009 - 03:31 PM


Besides cost, do SS valves offer any other advantage to Ti ones?

  • grayracer513

Posted April 29, 2009 - 03:49 PM


Compared to Yamaha OEM Titanium, no, not really.

  • honyam83

Posted April 30, 2009 - 05:13 PM


I have read that they last longer, they will wear more quickly initially , but you can squeeze more life out of them. They are heavier though.

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