Yamaha YFM70RY Service Manual page 210

TIP
• Apply engine oil to the bearing.
• Install the bearing so that the seal "a" is facing
the camshaft.
Installed depth "b"
0 mm (0 in)
2. Lubricate:
• Camshaft
• Decompressor lever pin
• Decompressor lever
Recommended lubricant
Camshaft, decompressor lever
pin
Molybdenum disulfide oil
Camshaft bearing, decompressor
lever
Engine oil
3. Install:
• Decompressor lever pin "1"
• Decompressor lever "2"
TIP
Install the decompressor lever pin "1" and de-
compressor lever "2" in the camshaft "3" as
shown in the illustration.
2
4. Install:
• Camshaft "1"
1
a
b
1
3
5-17
TIP
Install the camshaft so that the camshaft sprock-
et mounting pins "a" can be aligned with the
camshaft sprocket cover bolt holes "b".
b
5. Lubricate:
• Rocker arms
• Rocker arm shafts
Recommended lubricant
Rocker arm inner surface
Molybdenum disulfide oil
Rocker arm shaft
Engine oil
6. Install:
• Exhaust rocker arm "1"
• Exhaust rocker arm shaft "2"
• Intake rocker arm
• Intake rocker arm shaft
TIP
• Use a slide hammer bolt "3" to install the rocker
arm shaft.
• Make sure the exhaust rocker arm shaft is
completely pushed into the cylinder head.
Slide hammer bolt
90890-01083
Slide hammer bolt 6 mm
YU-01083-1
1
7. Install:
• Camshaft retainer
• Camshaft retainer bolts
CAMSHAFT
1
b
a
2
3