I have an 03 yz450f that needs work

2 replies to this topic
  • Owen Rutledge

Posted December 15, 2015 - 08:21 PM


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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  • BoxcarWilly

Posted December 15, 2015 - 09:36 PM


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

  • vossman23

Posted December 17, 2015 - 08:29 AM


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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