2005-2011 Honda Recon TRX250TE/TM service manual, Page 122Get this manual

2005-2011 Honda Recon TRX250TE/TM service manual, Page 122

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CYLINDER HEADIVALVE
blown cylinder head gasket improper valve adjust ment valve leakage worn piston ring or cylinder (Section 8)

High compression can be caused by:carbon deposits in