Checking The Camshafts - Yamaha XP500 Service Manual

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Before removing the camshafts from the

cylinder head, tilt up the engine at least 25°.

• intake camshaft cap 1

• exhaust camshaft cap 2

• dowel pins

To prevent damage to the cylinder head,

camshafts or camshaft caps, loosen the

camshaft cap bolts in stages and in a criss-

cross pattern, working from the outside in.

• intake camshaft 1

• exhaust camshaft 2

To prevent the timing chain from falling into the

crankcase, faster it with a wire 3.

• timing chain guide (exhaust side)

CHECKING THE CAMSHAFTS

• camshaft lobes

Blue discoloration/pitting/scratches →

Replace the camshaft.

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