Checking The Timing Chain Tensioners; Installing The Rocker Arms And Camshafts - Yamaha STAR XVS95CE 2DX1 2014 Service Manual

Rocker arm shaft outside diame-
ter
11.981–11.991 mm (0.4717–
0.4721 in)
Limit
11.941 mm (0.4701 in)
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).
Rocker-arm-to-rocker-arm-shaft
clearance
0.009–0.037 mm (0.0004–0.0015
in)
Limit
0.095 mm (0.0037 in)
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
Recommended lubricant
Engine oil
2. Install:
• Rocker arms
• Rocker arm shafts
3. Lubricate:
• Camshaft
Recommended lubricant
Camshaft
Molybdenum disulfide oil
Camshaft bearing
Engine oil
4. Install:
• Camshaft "1"
• Camshaft retainer "2"
Camshaft retainer bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
TIP
The front cylinder camshaft is identified by the
punch mark "a". The rear cylinder camshaft does
not have a punch mark.
5-22
CAMSHAFTS