Inspection - Yamaha RS90GTZ Service Manual

CAMSHAFTS
6. Remove:
• Exhaust camshaft sprocket
• Intake camshaft sprocket
(Use the special tool
Universal magneto & rotor holder:
YU-01235
Rotor holding tool:
90890-01235

INSPECTION

1. Inspect:
• Camshaft lobes
Blue discoloration/pitting/scratches → Replace
the camshaft.
2. Measure:
• Camshaft lobe dimensions
Out of specification → Replace the cam-
shaft.
Camshaft dimensions:
Intake:
<Limit>:
33.650 mm (1.3248 in)
24.850 mm (0.9783 in)
Exhaust:
<Limit>:
33.650 mm (1.3248 in)
24.850 mm (0.9783 in)
5-20
ENG
)
and