250f lost comression

4 replies to this topic
  • kounkel321

Posted March 28, 2007 - 01:38 PM


hey my buddy has a 2002 yz250f and he was out riding it the other day and it died and has no compression...he pulled top end off and everything looks fine/...what could it be??

  • 642MX

Posted March 28, 2007 - 01:44 PM


A valve probably isn't sealing against the seat. Did you disassemble the head?

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  • kounkel321

Posted March 28, 2007 - 02:01 PM


yea its at the dealership now..i just talked to em and they said my intake valves didnt look good...any places to get valves beside my dealer for 275 bucks?

  • 642MX

Posted March 28, 2007 - 02:03 PM


Try http://www.crotchrocket.com

  • grayracer513

Posted March 28, 2007 - 02:31 PM


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