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
2-8
SPEC
MAINTENANCE SPECIFICATIONS
Item Standard Limit
Wheel:
Front wheel type Spoke wheel
…
Rear wheel type Spoke wheel
…
Front rim size/Material 21 × 1.60/Aluminum
…
Rear rim size/Material 19 × 1.85/Aluminum
…
Rim runout limit:
Radial
…
2.0 mm (0.08 in)
Lateral … 2.0 mm (0.08 in)
Drive chain:
Type/Manufacturer DID520DMA2 SDH/DAIDO …
Number of links 111 links+joint …
Chain slack 48~58 mm (1.9~2.3 in) …
Chain length (15 links) … 242.9 mm (9.563 in)
Front disc brake:
Disc outside dia. × Thickness 250 × 3.0 mm 250 × 2.5 mm
(9.84 × 0.12 in) (9.84 × 0.10 in)
Pad thickness 4.4 mm (0.17 in) 1.0 mm (0.04 in)
Master cylinder inside dia. 11.0 mm (0.433 in)
…
Caliper cylinder inside dia. 27.0 mm (1.063 in) × 2
…
Brake fluid type DOT #4
…
Rear disc brake:
Disc outside dia. × Thickness 245 × 4.0 mm 245 × 3.5 mm
(9.65 × 0.16 in) (9.65 × 0.14 in)
Deflection limit
…
0.15 mm (0.006 in)
Pad thickness 6.4 mm (0.25 in) 1.0 mm (0.04 in)
Master cylinder inside dia. 11.0 mm (0.433 in)
…
Caliper cylinder insdie dia. 25.4 mm (1.000 in)
…
Brake fluid type DOT #4
…
Brake lever & brake pedal:
Brake lever position 95 mm (3.74 in)
…
Brake pedal height Zero mm (Zero in)
…
(vertical height above footrest top)
Clutch lever free play (lever end) 8~13 mm (0.31~0.51 in)
…
Throttle grip free play 3~5 mm (0.12~0.20 in)
…
1C3-28199-10 40 04.5.17, 9:19:38 PM