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Dirt Bike Brands - Other
XR75ko engine HELP!
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[QUOTE="spanky250, post: 153832, member: 20897"] 115 psi is low by any engine standards, although those small engines don't run the high compression of bigger bikes. I would think it should have at least 140-150 psi, but maybe someone else here that owns one can chime in with the specs. Did you test it warm, with the throttle wide open? If so, the next thing I would do is a leak-down test, I think you are going to find worn rings. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
XR75ko engine HELP!
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