Checking The Camshaft Sprockets; Checking The Rocker Arms And Rocker Arm Shafts - Yamaha XVS950CU 2014 Service Manual

Camshaft lobe dimensions
Intake A
42.470–42.570 mm (1.6720–
1.6760 in)
Limit
42.370 mm (1.6681 in)
Intake B
37.041–37.141 mm (1.4583–
1.4622 in)
Limit
36.941 mm (1.4544 in)
Exhaust A
42.138–42.238 mm (1.6590–
1.6629 in)
Limit
42.038 mm (1.6550 in)
Exhaust B
37.015–37.115 mm (1.4573–
1.4612 in)
Limit
36.915 mm (1.4533 in)
3. Check:
• Camshaft oil passage
Obstruction → Blow out with compressed air.
EAS23870

CHECKING THE CAMSHAFT SPROCKETS

1. Check:
• Camshaft sprockets
More than 1/4 tooth wear "a" → Replace the
camshaft sprocket and the timing chain as a
set.
a. 1/4 tooth
b. Correct
1. Timing chain roller
2. Camshaft sprocket
EAS23880
CHECKING THE ROCKER ARMS AND
ROCKER ARM SHAFTS
The following procedure applies to all of the
rocker arms and rocker arm shafts.
1. Check:
• Rocker arm
• Rocker arm roller
Damage/wear → Replace.
2. Check:
• Rocker arm shaft
Blue discoloration/excessive wear/pit-
ting/scratches → Replace or check the lubri-
cation system.
3. Measure:
• Rocker arm inside diameter
Out of specification → Replace.
Rocker arm inside diameter
12.000–12.018 mm (0.4724–
0.4731 in)
Limit
12.036 mm (0.4739 in)
4. Measure:
• Rocker arm shaft outside diameter "a"
Out of specification → Replace.
5-21
CAMSHAFTS