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
5-16
CHAS
FRONT BRAKE AND REAR BRAKE
4. Inspect:
9
Master cylinder piston 1
9
Master cylinder cup 2
Wear/Damage/Score marks→Replace master
cylinder kit.
A Front
B Rear
EC534214
Caliper
1. Inspect:
9
Caliper cylinder inner surface a
Wear/Score marks→Replace caliper as-
sembly.
A Front
B Rear
2. Inspect:
9
Caliper piston 1
Wear/Score marks→Replace caliper piston
assembly.
w
Replace the piston seals and dust seals
2
whenever a caliper is disassembled.
EC534301
Brake hose
1. Inspect:
9
Brake hose 1
Crack/Damage→Replace.
EC5A5000
ASSEMBLY AND INSTALLATION
w
9
All internal parts should be cleaned in
new brake fluid only.
9
Internal parts should be lubricated with
brake fluid when installed.
9
Replace the piston seals and dust seals
whenever a caliper is disassembled.
1C3-28199-10 179 04.5.17, 9:26:02 PM