05 YZ 450 idle issues

2 replies to this topic
  • jimbopitts

Posted May 02, 2006 - 11:13 AM


With the clutch in and the bike in gear,i roll on the throttle and let it come back to idle,the rpm's stay high for a few seconds than go back to normal. Any ideas?

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  • grayracer513

Posted May 02, 2006 - 12:39 PM


Your idle mixture may be set too lean, you may have an air leak in the intake, or you may have tight intake valves, although this is less likely with a 450. If none of that fixes it, a dirty carb could be the problem.

  • WFOracer

Posted May 02, 2006 - 12:49 PM


Right on grayracer, my thoughts exactly.

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