Checking The Primary Driven Gear; Installing The Oil Seal; Installing The Right Crankcase Cover; Installing The Clutch - Yamaha YZ 2015 Series Owner's Service Manual

CHECKING THE PRIMARY DRIVEN GEAR

EASB291252
1. Check:
• Primary driven gear
Damage/wear  Replace the primary drive
and primary driven gears as a set.
Excessive noise during operation  Re-
place the primary drive and primary driven
gears as a set.

INSTALLING THE OIL SEAL

EASB291253
1. Install:
• Oil seal "1"
New
• Washer "2"
• Circlip "3"
New
TIP
• Apply the lithium-soap-based grease on the
oil seal lip.
• Install the oil seal in parallel with its manufac-
ture's marks or numbers facing inward.
LS
EASB291254 INSTALLING THE RIGHT CRANKCASE
COVER
1. Install:
• Dowel pin "1"
• O-ring "2"
New
• Collar "3"
• Gasket "4"
New
TIP
Apply the lithium-soap-based grease on the O-
ring.
1
2. Install:
TIP
• Apply the engine oil on the impeller shaft end.
• Mesh the impeller shaft gear "3" with primary
• Tighten the right crankcase cover bolts in
3
2
1
2
LS
3

INSTALLING THE CLUTCH

EASB291255
1. Install:
TIP
1
• Apply the lithium-soap-based grease on the
4
• Before installation, apply the engine oil to the
5-47
• Right crankcase cover "1"
• Right crankcase cover bolt "2"
Right crankcase cover bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
drive gear "4".
stages and in a crisscross pattern.
1
• Push lever shaft "1"
oil seal lip.
push lever shaft sliding surface.
CLUTCH
4
E
3
2
1