crf 450 valves

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#1
I lost compression in my '02 450,found out I needed to reshim the intake valves and did just that. The bike ran fine for 6 good rides when I tried to start it for my next ride no compression again. Does anyone know what is going wrong and how to fix it?
 

Rich Rohrich

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#2

D Lafleur

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#3
Rich,

Thanks for the links, MP thanks for the informative piece. I am looking to "help" a friend out of a hardly used 02 CRF450. Is this the only thing I should be looking for, or is there any other gotchas?

Thanks again. :worship:

Darin
 

Rich Rohrich

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#4
Water pump seals and bearing are a trouble spot as well, but otherwise it's a pretty solid engine.
 

D Lafleur

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#5
Rich,
Thanks again. I have been thinking, I could really use a second bike, why not have something differant? The timing on this CRF couldnt have worked out much better.

Dairn
 

Rich Rohrich

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#6
My 02 CRF has been hands down the most enjoyable bike I've ever owned, and I've had a few. :)