yz450f maintaince


3 replies to this topic
  • STEAMER450

Posted March 20, 2007 - 03:44 PM

#1

I have a 04 yz450f with two seasons on it I have clearanced the vlaves twice and want another season out of it it has started to backfire more and more often what would be a budget preventative maintaince ?

  • CaptainKnobby

Posted March 20, 2007 - 05:13 PM

#2

just go ahead and rebuild the the top end or get someone elese to that knows how so they can check the condition of the valves because if u blow that sucker up it will probally cost u $2000.00.

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  • new2blu

Posted March 20, 2007 - 05:29 PM

#3

I have a 04 yz450f with two seasons on it I have clearanced the vlaves twice and want another season out of it it has started to backfire more and more often what would be a budget preventative maintaince ?


Have you jetted correctly? This is the most common cause of backfiring on de-accell. I have a 03 WR450 that will be able to get many more seasons out of with no need for a new top end.

  • 642MX

Posted March 21, 2007 - 06:31 AM

#4

So have you adjusted the valves twice, or have you checked them twice?





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