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
4-14
ENG
CARBURETOR AND REED VALVE
3. Install:
9
Main jet holder 1
9
Main jet 2
9
Pilot jet 3
9
Valve seat 4
9
Screw (valve seat) 5
4. Install:
9
Needle valve 1
9
Float 2
9
Float pin 3
9
Screw (float pin) 4
9
Needle jet cover 5
NOTE:
9 After installing the needle valve to the float, in-
stall them to the carburetor.
9 Check the float for smooth movement.
5. Install:
9
Float chamber 1
9
Plate 2
9
Screw (float chamber) 3
6. Install:
9
Jet needle 1
9
Needle holder 2
To throttle valve 3.
1C3-28199-10 103 04.5.17, 9:21:52 PM