2003 yz450f stalls out, wont kickstart

1 reply to this topic
  • steine

Posted September 13, 2010 - 06:41 AM


My 2003 yz450f was running good, went on steep ride & climbed about 3000 feet, loud backfire and missing then stalled out. Let it sit for 5 minutes and it started again but had same issues, any thoughts ??? Jetting, Airfilter, gas issues ??? Please help

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  • ttr250dude

Posted September 13, 2010 - 10:55 PM


jetting. jetting may be spot on for a specific elevation but climb 3000ft and its gonna be pretty rich.

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