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
4-40
ENG
KICK AXLE, SHIFT SHAFT AND PRIMARY DRIVE
GEAR
EC4B4300
Kick gear clip
1. Measure:
9
Kick clip friction force
Out of specification → Replace.
Use a spring gauge 1.
EC4B4400
Shift shaft
1. Inspect:
9
Shift shaft 1
Bend/Damage → Replace.
9
Spring 2
Broken → Replace.
EC4C4100
Shift guide and shift lever assembly
1. Inspect:
9
Shift guide 1
9
Shift lever 2
9
Pawl 3
9
Pawl pin 4
9
Spring 5
Wear/Damage → Replace.
EC4E4100
Stopper lever
1. Inspect:
9
Stopper lever 1
Wear/Damage → Replace.
9
Roller 2
Rotate outer race with a finger.
Rough spot/Seizure → Replace the stopper
lever.
9
Torsion spring 3
Broken → Replace.
EC484300
Primary drive gear and primary driven gear
1. Inspect:
9
Primary drive gear 1
9
Primary driven gear 2
Wear/Damage → Replace.
Kick clip friction force:
0.8~1.2 kg (1.8~2.6 lb)
1C3-28199-10 129 04.5.17, 9:23:04 PM