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Owen Rutledge

I have an 03 yz450f that needs work

3 posts in this topic

my bike backfires very bad. Needs to be timed and valves adjusted and I have no clue how to work on it someone help please.

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Get a manual. Study it, watch YouTube videos, try to find help locally.

This and search the site, there's lots of posts on fixing your problems.

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