Yamaha XVS950CU 2014, Service Manual

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CAMSHAFTS
5-22
5. Calculate:
• Rocker-arm-to-rocker-arm-shaft clearance
TIP
Calculate the clearance by subtracting the rock-
er arm shaft outside diameter from the rocker
arm inside diameter.
Out of specification
→
Replace the defective
part(s).
EAS23970
CHECKING THE TIMING CHAIN
TENSIONERS
The following procedure applies to all of the tim-
ing chain tensioners.
1. Check:
• Timing chain tensioner
Cracks/damage
→
Replace.
2. Check:
• One-way cam operation
Rough movement
→
Replace the timing
chain tensioner assembly.
3. Check:
• Timing chain tensioner cap bolt “1”
• Copper washer “2”
• Timing chain tensioner spring “3”
• One-way cam “4”
• Timing chain tensioner gasket “5”
• Timing chain tensioner rod “6”
Damage/wear
→
Replace the defective
part(s).
EAS24040
INSTALLING THE ROCKER ARMS AND
CAMSHAFTS
The following procedure applies to all of the
rocker arms and camshafts.
1. Lubricate:
• Rocker arm shafts
2. Install:
• Rocker arms
• Rocker arm shafts
3. Lubricate:
• Camshaft
4. Install:
• Camshaft “1”
• Camshaft retainer “2”
TIP
The front cylinder camshaft is identified by the
punch mark “a”. The rear cylinder camshaft does
not have a punch mark.
Rocker arm shaft outside diame-
ter
11.981–11.991 mm (0.4717–
0.4721 in)
Limit
11.941 mm (0.4701 in)
Rocker-arm-to-rocker-arm-shaft
clearance
0.009–0.037 mm (0.0004–0.0015
in)
Limit
0.095 mm (0.0037 in)
Recommended lubricant
Engine oil
Recommended lubricant
Camshaft
Molybdenum disulfide oil
Camshaft bearing
Engine oil
T
R
.
.
Camshaft retainer bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)