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STEAMER450

yz450f maintaince

4 posts in this topic

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 ?

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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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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.

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