1999-2002 TRX400EX Fourtrax Service Manual, Page 91Get this manual

1999-2002 TRX400EX Fourtrax Service Manual, Page 91

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CYLINDER HEADVALVE
CAMSHAFT Check the cam and journal surfaces of the camshaft for scoring, scratches or evidence of insufficient lubricationCheck the oil holes in the camshaft for cloggingTurn