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
3-2
MAINTENANCE INTERVALS
INSP
ADJ
Item Remarks
COOLING SYSTEM
Check coolant level and leakage ●●
Check radiator cap operation ●
Replace coolant ● Every two years
Inspect hoses ●
OUTSIDE NUTS AND BOLTS Refer to “STARTING
Retighten ●● AND BREAK-IN” section
in the CHAPTER 1.
AIR FILTER
Clean and lubricate ●● Use foam air-filter oil or
Replace ● equivalent oil
FRAME
Clean and inspect ●●
FUEL TANK, COCK
Clean and inspect ●●
BRAKES
Adjust lever position and pedal height ●●
Lubricate pivot point ●●
Check brake disc surface ●●
Check fluid level and leakage ●●
Retighten brake disc bolts, caliper bolts,
●●
master cylinder bolts and union bolts
Replace pads ●
Replace brake fluid ● Every one year
FRONT FORKS
Inspect and adjust ●●
Replace oil ●●Suspension oil “S1”
Replace oil seal ●
FRONT FORK OIL SEAL AND DUST SEAL
Clean and lube ●● Lithium base grease
PROTECTOR GUIDE
Replace ●
REAR SHOCK ABSORBER
(After
Inspect and adjust ●●
rain ride)
Lube ●●
Molybdenum disulfide grease
Retighten ●●
CHAIN GUARD AND ROLLERS
Inspect ●●
SWINGARM
Inspect, lube and retighten ●●
Molybdenum disulfide grease
RELAY ARM, CONNECTING ROD
Inspect, lube and retighten ●●
Molybdenum disulfide grease
STEERING HEAD
Inspect free play and retighten ●●
Clean and lube ● Lithium base grease
Replace bearing ●
TIRE, WHEELS
Inspect air pressure, wheel run-out,
●●
tire wear and spoke looseness
Retighten sprocket bolt ●●
Inspect bearings ●
Replace bearings ●
Lubricate ● Lithium base grease
THROTTLE, CONTROL CABLE
Check routing and connection ●●
Yamaha cable lube or
Lubricate ●●
SAE 10W-30 motor oil
After
break-
in
Every
race
Every
third
Every
fifth
As re-
quired
1C3-28199-10 51 04.5.17, 9:19:55 PM