2007 yz450 won't start after warned up?

42 replies to this topic
  • grayracer513

Posted January 18, 2015 - 11:35 AM


nope...brand new valves with seats recut....yz450f's dont have tappets...


Yes they do.  "Bucket" tappets over each valve.

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  • vet45

Posted January 18, 2015 - 02:46 PM


greyracer...parts list refers to them as "lifter, valves"...ive never heard them referred to  as tappets.....live and learn.....more excited to see the poist explaining the stator was the issue....

  • grayracer513

Posted January 18, 2015 - 08:57 PM


Tappet, cam follower, and lifter are synonymous and generally interchangeable terms. 

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