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blown head gasket

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  1. YFZ450 & YFZ450R General Talk
    I just bought a 06 yfz with twist throttle k&n filter with no lid, a gytr exhaust, stage 1 hot cams, boysen quick shot 3, with polished head ports by mmad and fuel screw and after I bought it I rode it for a couple minutes and it started getting really hot and it would bog and turn off and...
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