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
5-4
CHAS
FRONT WHEEL AND REAR WHEEL
EC514200
Wheel axle
1. Measure:
9
Wheel axle bends
Out of specification → Replace.
Use the dial gauge 1.
NOTE:
The bending value is shown by one half of the
dial gauge reading.
w
Do not attempt to straighten a bent axle.
EC594200
Brake disc
1. Measure:
9
Brake disc deflection (only rear brake disc)
Use the dial gauge 1.
Out of specification→Inspect wheel runout.
If wheel runout is in good condition, re-
place the brake disc.
2. Measure:
9
Brake disc thickness a
Out of limit→Replace.
Wheel axle bending limit:
0.5 mm (0.020 in)
Disc wear limit:
Standard <Limit>
Front 3.0 mm (0.12 in) 2.5 mm (0.10 in)
Rear 4.0 mm (0.16 in) 3.5 mm (0.14 in)
Disc deflection limit:
Standard <Limit>
Rear —
0.15 mm (0.006 in)
1C3-28199-10 167 04.5.17, 9:25:14 PM