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05 crf250r dying?

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i have a 2005 crf250r and i do not have as much compression that i used to have. The bike almost never starts as well. Do you guys think my valves are tight?

I am thinking that i need to put a new topend in the bike. What should i do guys?

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well one sign of a needing a new top end, is low compression.. but do valves affect compression?

Valves, gaskets, piston, and rings affect the compression. Its probably needs new valves.

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