wr450 Top End. What should we do?

7 replies to this topic
  • tt230wheeliemaster

Posted January 29, 2007 - 12:55 PM


So my buddy smoked the head, cylinder, and piston on his '05 wr450. So he is thinking of getting a big bore kit. Athena or ice cube?? His head is also toast. He bent and broke some valves. So he needs a new head.

I am a honda guy some when it comes to finding parts and good advice on the yamy I dont know where to start.

What would you guys do?

  • Indy_WR450

Posted January 29, 2007 - 01:27 PM


Maxpower 488 ice cube kit! :ride:


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  • tt230wheeliemaster

Posted January 29, 2007 - 05:47 PM


thanks indy, now what about the head??? I guess we need a complete new head

  • Indy_WR450

Posted January 29, 2007 - 05:59 PM


Just get the stock head complete from Yamaha.:ride:

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  • tt230wheeliemaster

Posted January 29, 2007 - 06:14 PM


Who sells oem yamaha parts for cheap? I know, i know. But if it was a honda i would say motosport or service honda

  • Indy_WR450

Posted January 29, 2007 - 06:20 PM


Best prices or call and they will match any reasonable OEM discount price:


  • tony1970

Posted January 30, 2007 - 07:27 PM


How did the damage happen? Operator error or mechanical failure? Just curious.

  • ausgeflippt13

Posted January 31, 2007 - 10:57 AM


You said you bent some valves, but didn't say whether the rest of the head was bad. Is there pitting or did the valves merely bend in their guides? There might still be a chance for the head; hopefully you'll merely have to re-valve and guide it.

Check out Bob Tracy's http://www.worldofcycles.com/

I got a WR400f CDi for $100 less than the cheapest dealer I could find. He's got killer pricing.


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