Service manual
Table Of Contents
- Inroduction
- Yamaha Motor Corporation, USA YZ/WR Motorcycle Limited Warranty
- How to use this Manual
- Index
- Contents
- Chapter 1 General Information
- Chapter 2 Specifications
- Chapter 3 Regular Inspection and Adjustments
- Chapter 4 Engine
- Seat, Fuel Tank and Side Covers
- Exhaust Pipe and Silencer
- Radiator
- Carburetor and Reed Valve
- Cylinder Head, Cylinder and Piston
- Clutch and Primary Driven Gear
- Kick Axle, Shift Shaft and Primary Drive Gear
- YPVS Govenor
- Water Pump
- CDI Magneto
- Engine Removal
- Crankcase and Crankshaft
- Transmission, Shift Cam and Shift Fork
- Chapter 5 Chassis
- Chapter 6 Electrical
- Chapter 7 Tuning
4-65
ENG
CRANKCASE AND CRANKSHAFT
EC4N5102
Oil seal
1. Install:
9
Oil seal (left) 1
9
Oil seal (right) 2
NOTE:
9
Apply the lithium soap base grease on the oil
seal lip.
9
Install the oil seal with its manufacture’s marks
or numbers facing outward.
EC4N5272
Crankshaft
1. Install:
9
Crankshaft 1
Use the crankshaft installing tool 2, 3, 4
å For USA and CDN
∫ Except for USA and CDN
NOTE:
9
Hold the connecting rod at top dead center with
one hand while turning the nut of the installing
tool with the other. Operate the installing tool
until the crankshaft bottoms against the bear-
ing.
9
Before installing the crankshaft, clean the con-
tacting surface of crankcase.
9
Apply the lithium soap base grease on the oil
seal lip.
cC
Do not use a hammer to drive in the crank-
shaft.
Crankshaft installing tool:
Pot
2
:
YU-90050/90890-01274
Bolt
3
:
YU-90050/90890-01275
Adapter
4
:
YU-90063/90890-01278
å∫
1C3-28199-10 154 04.5.17, 9:24:25 PM