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
3-8
INSP
ADJ
RADIATOR CAP OPENING PRESSURE INSPECTION/
COOLING SYSTEM INSPECTION
EC356002
RADIATOR CAP OPENING PRESSURE
INSPECTION
1. Attach:
9
Radiator cap tester 1 and adapter 2
NOTE:
Apply water on the radiator cap seal.
3 Radiator cap
2. Apply the specified pressure.
3. Inspect:
9
Pressure
Impossible to maintain the specified pres-
sure for 10 seconds → Replace.
EC357003
COOLING SYSTEM INSPECTION
1. Inspect:
9
Coolant level
2. Attach:
9
Radiator cap tester 1 and adapter 2
3. Apply the specified pressure.
Radiator cap tester:
YU-24460-01/90890-01325
Adapter:
YU-33984/90890-01352
Radiator cap tester:
YU-24460-01/90890-01325
Adapter:
YU-33984/90890-01352
Radiator cap opening pressure:
95~125 kPa (0.95~1.25 kg/cm
2
,
13.5~17.8 psi)
Standard pressure:
180 kPa (1.8 kg/cm
2
, 25.6 psi)
NOTE:
9
Do not apply pressure more than specified
pressure.
9
Radiator should be filled fully.
1C3-28199-10 57 04.5.17, 9:20:04 PM