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
3-14
INSP
ADJ
PILOT AIR SCREW ADJUSTMENT
4. Remove:
9
Oil drain bolt 1
9
Oil filler cap 2
Drain the transmission oil.
5. Install:
9
Aluminum washer
9
Oil drain bolt 1
6. Fill:
9
Transmission oil
7. Check:
9
Oil leakage
8. Check:
9
Transmission oil level
9. Install:
9
Oil filler cap 2
EC35L002
PILOT AIR SCREW ADJUSTMENT
1. Adjust:
9
Pilot air screw 1
Recommended oil:
Yamalube 4 (10W-30) or SAE
10W-30 type SE motor oil
Oil capacity
(periodic oil change):
0.66 L (0.58 Imp qt, 0.69 US qt)
Adjustment steps:
9
Screw in the pilot air screw until it is lightly
seated.
9
Back out by the specified number of turns.
Pilot air screw:
2-1/4 turns out
20 Nm (2.0 m•kg, 14 ft•lb)
1C3-28199-10 63 04.5.17, 9:20:16 PM