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
7-8
TUN
SETTING
EC71Q000
Carburetor setting parts
Part name Size Part number
Main jet
1
1
Lean #390 137-14143-78
#400 137-14143-80
(STD) #410 137-14143-82
#420 137-14143-84
*(STD) #430 137-14143-86
#440 137-14143-88
Rich #450 137-14143-90
Pilot jet
2
Lean #30
4KM-14142-30
#32.5
4KM-14142-32
#35
4KM-14142-35
#37.5
4KM-14142-37
(STD) #40
4KM-14142-40
#42.5
4KM-14142-42
#45
4KM-14142-45
#47.5
4KM-14142-47
Rich #50
4KM-14142-50
Throttle Rich
valve
3
(STD) 4.0
1C3-14112-40
4.25
1C3-14112-42
Lean
Jet needle
4
Rich
6CHY18-78
284-14116-G3
6CHY18-79
284-14116-G4
6CHY18-80
284-14116-G5
6CHY18-81
284-14116-G6
Lean
6CHY18-82
284-14116-G7
Rich
6CHY6-78
284-14116-F3
6CHY6-79
284-14116-F4
6CHY6-80
284-14116-F5
6CHY6-81
284-14116-F6
Lean
6CHY6-82
284-14116-F7
Rich
6CHY5-78
284-14116-E3
6CHY5-79
284-14116-E4
(STD)
6CHY5-80
284-14116-E5
6CHY5-81
284-14116-E6
Lean
6CHY5-82
284-14116-E7
*For EUROPE
1C3-28199-10 243 04.5.17, 9:30:55 PM