Yamaha XP500, Service Manual

Page: 341 / 559

5 - 10
ENG
CAMSHAFTS
5. Remove:
CAUTION:
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
CAUTION:
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.
1
2
6. Remove:
• intake camshaft
1
• exhaust camshaft
2
NOTE:
To prevent the timing chain from falling into the
crankcase, faster it with a wire
3
.
7. Remove:
• timing chain guide (exhaust side)
1
2
3
EAS00204
CHECKING THE CAMSHAFTS
1. Check:
• camshaft lobes
Blue discoloration/pitting/scratches
→
Replace the camshaft.