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
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EC040001
IMPORTANT NOTICE
THIS MACHINE IS DESIGNED STRICTLY FOR
COMPETITION USE, ONLY ON A CLOSED
COURSE. It is illegal for this machine to be op-
erated on any public street, road, or highway.
Off-road use on public lands may also be illegal.
Please check local regulations before riding.
1. THIS MACHINE IS TO BE OPERATED
BY AN EXPERIENCED RIDER ONLY.
Do not attempt to operate this machine
at maximum power until you are totally
familiar with its characteristics.
2. THIS MACHINE IS DESIGNED TO BE
RIDDEN BY THE OPERATOR ONLY.
Do not carry passengers on this ma-
chine.
3. ALWAYS WEAR PROTECTIVE APPAR-
EL.
When operating this machine, always
wear an approved helmet with goggles
or a face shield. Also wear heavy
boots, gloves, and protective clothing.
Always wear proper fitting clothing
that will not be caught in any of the
moving parts or controls of the
machine.
4. ALWAYS MAINTAIN YOUR MACHINE IN
PROPER WORKING ORDER.
For safety and reliability, the machine
must be properly maintained. Always
perform the pre-operation checks indi-
cated in this manual. Correcting a me-
chanical problem before you ride may
prevent an accident.
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SAFETY INFORMATION
1C3-28199-10 4 04.5.17, 9:17:12 PM