Yamaha XV250 (1994) [135/291] Inspection and repair

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INSPECTION AND REPAIR 2 Inspect Cam lobes Pitting Scratches Blue discoloration place 3 Measure Cam lobes Use a Micrometer Out of specification Replace Re Cam Lobe Limit A Cam Lobe Limit B 1ntake 26 090 mm 1 027 in 20 045 mm 0 789 in Exhaust 26 090 mm 1 027 in 20 087 mm 0 791 in ROCKER ARM AND ROCKER ARM SHAFT 1 Inspect Rocker arm shafts Rocker arms Wear Damage Replace Rocker arm shaft and arm inspection steps Inspect the two areas on the rocker arrh for sings of unusual wear 1 Rocker arm shaft hole 2 Cam lobe contact surface Excessive wear Replace Inspect the surface condition of the rocker arm shaft Pitting Scratches Blue discoloration Replace Check lubrication Measure the inside diameter a of the rocker arm hole Out of specification Replace Rocker Arm Inside Diameter 10 000 10 015 mm 0 3937 0 3943 in 4 25