Yamaha YZ125(N)/LC User Manual

5MV-28199-30
OWNER’S SERVICE MANUAL
MANUEL D’ATELIER DU
PROPRIETAIRE
FAHRER-UND
WARTUNGS-HANDBUCH
MANUALE DI SERVIZIO DEL
PROPRIETARIO
A4 HYOSHI MASTER H8 JUNE EDIT. DIV.
Y 0
YZ125
(
N
)
/LC
YZ125
(
N
)
/LC
5MV -9-30 HYOUSHI (QX3.3J) 00.10.12 18:06 y[W 1 (2,1)

Yamaha YZ125(N)/LC Specifications

General

Brand	Yamaha
Model	YZ125(N)/LC
Category	Motorcycle
Language	English

Summary

IMPORTANT NOTICE

SAFETY INFORMATION

General safety guidelines for operating the machine.

HOW TO USE THIS MANUAL

PARTICULARLY IMPORTANT INFORMATION

Key information symbols and their meanings.

ILLUSTRATED SYMBOLS

CHAPTER 1 GENERAL INFORMATION

DESCRIPTION

Identification of key machine components and their functions.

MACHINE IDENTIFICATION

CHAPTER 2 SPECIFICATIONS

GENERAL SPECIFICATIONS

Detailed technical specifications for the motorcycle model.

MAINTENANCE SPECIFICATIONS

CHAPTER 3 REGULAR INSPECTION AND ADJUSTMENTS

MAINTENANCE INTERVALS

Schedule of recommended maintenance tasks and intervals.

PRE-OPERATION INSPECTION AND MAINTENANCE

GENERAL INSPECTION AND MAINTENANCE

General checklist for pre-operation inspection and maintenance.

ENGINE/COOLANT LEVEL INSPECTION/ COOLANT REPLACEMENT

COOLANT LEVEL INSPECTION

Procedure for checking and topping up engine coolant levels.

COOLANT REPLACEMENT

Steps for replacing engine coolant, including draining and flushing.

CLUTCH ADJUSTMENT

CLUTCH LEVER FREE PLAY ADJUSTMENT STEPS

CHASSIS/BRAKE SYSTEM AIR BLEEDING

BRAKE SYSTEM AIR BLEEDING

FRONT BRAKE PAD INSPECTION AND REPLACEMENT

FRONT BRAKE PAD INSPECTION AND REPLACEMENT

FRONT BRAKE ADJUSTMENT

REAR BRAKE PAD INSPECTION AND REPLACEMENT

REAR BRAKE PAD INSPECTION AND REPLACEMENT

REAR BRAKE ADJUSTMENT

RADIATOR CAP INSPECTION/COOLING SYSTEM INSPECTION

RADIATOR CAP INSPECTION

SPROCKETS INSPECTION/DRIVE CHAIN INSPECTION

SPROCKETS INSPECTION

DRIVE CHAIN INSPECTION

DRIVE CHAIN SLACK ADJUSTMENT

FRONT FORK INSPECTION

FRONT FORK OIL SEAL AND DUST SEAL CLEANING/FRONT FORK REBOUND DAMPING FORCE ADJUSTMENT

FRONT FORK COMPRESSION DAMPING FORCE ADJUSTMENT

REAR SHOCK ABSORBER INSPECTION

REAR SHOCK ABSORBER SPRING PRELOAD ADJUSTMENT

REAR SHOCK ABSORBER LOW COMPRESSION DAMPING FORCE ADJUSTMENT

REAR SHOCK ABSORBER HIGH COMPRESSION DAMPING FORCE ADJUSTMENT

CHAPTER 4 ENGINE

CARBURETOR AND REED VALVE

CYLINDER HEAD AND CYLINDER REMOVAL

PISTON AND POWER VALVE REMOVAL

CYLINDER HEAD INSPECTION

CYLINDER INSPECTION

CLUTCH AND PRIMARY DRIVEN GEAR

KICK AXLE, SHIFT SHAFT AND PRIMARY DRIVE GEAR

CARBURETOR DISASSEMBLY

YPVS GOVERNOR

WATER PUMP DISASSEMBLY

WATER PUMP INSPECTION

WATER PUMP

CDI MAGNETO REMOVAL POINTS

CDI MAGNETO INSPECTION

IGNITION TIMING CHECK

CHAPTER 6 ELECTRICAL

ELECTRICAL COMPONENTS AND WIRING DIAGRAM

IGNITION SYSTEM

INSPECTION STEPS

CHAPTER 7 TUNING

ENGINE

Carburetor setting

Adjusting the carburetor for optimal engine operation based on conditions.

Jet needle adjustment

Front fork setting

Rear shock absorber setting parts

Rear suspension setting