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
5-14
CHAS
FRONT BRAKE AND REAR BRAKE
EC5A3000
REMOVAL POINTS
EC5A3101
Brake fluid
1. Remove:
[Front]
9
Master cylinder cap 1
[Rear]
9
Master cylinder cap 1
9
Protector
NOTE:
Do not remove the diaphragm.
A Front
B Rear
2. Connect the transparent hose 2 to the
bleed screw 1 and place a suitable contain-
er under its end.
A Front
B Rear
3. Loosen the bleed screw and drain the brake
fluid while pulling the lever in or pushing
down on the pedal.
cC
9
Do not reuse the drained brake fluid.
9
Brake fluid may erode painted surfaces or
plastic parts. Always clean up spilled fluid
immediately.
EC533301
Caliper piston
1. Remove:
9
Caliper piston
Use compressed air and proceed carefully.
w
9
Cover piston with rag and use extreme cau-
tion when expelling piston from cylinder.
9
Never attempt to pry out piston.
A Front
B Rear
Caliper piston removal steps:
9
Insert a piece of rag into the caliper to lock
one caliper.
9
Carefully force the piston out of the caliper
cylinder with compressed air.
1C3-28199-10 177 04.5.17, 9:25:53 PM