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Crf 250 Help!!!!!!!!
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[QUOTE="MOTOX888, post: 1032738, member: 65457"] I am redoing the topend of the motor in a 05 crf250. I put a new weisco piston and hotcams cam in it along with a new clutch, but never mind the clutch because it is fine. I put the piston and cam in ( I did not re-shim the valves ) and put everything back together and it won’t start. It wants to start but it won’t. Every once in awhile after a lot of kicks it will fire for a split second but it won’t run. So after I tried and tried and finally decided to pull off the valve cover again and put back in the stock cam. After I got the stock cam in, I put the bearing caps and everything back in and it still won’t run!! It still fires for a split second but it still won’t run. I would have thought that with the stock cam and the stock shims would not matter because it would start fine before I pulled it apart. The timing marks are lined up correctly as I checked them millions of times. This is getting really frustrating. :bang: What could be the problem? [/QUOTE]
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Crf 250 Help!!!!!!!!
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