Removal - Yamaha RS90GTZ Service Manual

CAMSHAFTS

REMOVAL

1. Remove:
• Timing accessing screw
• Crankshaft end cover
2. Align:
• "I" mark on the AC magneto rotor
(with the stationary pointer
magneto cover)
TIP
• Turn the crankshaft clockwise.
• When piston #3 is at TDC on the compres-
sion stroke, align the "I" mark
magneto rotor with the stationary pointer
on the AC magneto cover.
• TDC on the compression stroke can be found
when the camshaft lobes for cylinder #3 are
turned away from each other.
3. Remove:
• Timing chain tensioner
• Gasket
4. Remove:
• Camshaft caps
• Dowel pins
NOTICE
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.
5. Remove:
Exhaust camshaft
(with camshaft sprocket)
Intake camshaft
(with camshaft sprocket)
TIP
To prevent the timing chain from falling into the
crankcase, fasten it with a wire
5-19
ENG
on the AC
on the AC
.