06' crf450 valve adjustment....

1 reply to this topic
  • xptntrider101

Posted 17 May 2009 - 10:09 AM

#1


Went to check the valve clearance on my bike and the exhaust valves are fine but the intake valve have NO CLEARANCE at all. I know this because with the time sprocket and chain off the cam i can feel a good amount of resistance on the intake valves when the lobes arent touching!!! one valve has a 120 shim and the other has a 140 shim.... could there be something wrong with the valves or could who ever rebuilt this motor before i owned the bike had switched the shims or buckets around??? i need some info fast. Thanks guys!!!!

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  • davidl9999

Posted 17 May 2009 - 10:14 AM

#2

Or your intake valves could just be moving and ready for a valve job.
Shim them, take a ride, see if they move again. Get the head done and replace the valves if they move.



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