General Information - Yamaha YZ125X1 2008 Owner's Service Manual

CHAPTER 1
GENERAL INFOR-
MATION
DESCRIPTION ................. 1-1
MACHINE
IDENTIFICATION ............. 1-2
INCLUDED PARTS .......... 1-2
IMPORTANT
INFORMATION................. 1-2
CHECKING OF CONNEC-
TION ................................. 1-3
SPECIAL TOOLS ............. 1-4
CONTROL FUNCTIONS .. 1-7
STARTING AND
BREAK-IN ........................ 1-7
TORQUE-CHECK
POINTS............................. 1-9
CLEANING AND
STORAGE ...................... 1-10
CHAPTER 2
SPECIFICATIONS
GENERAL SPECIFICA-
TIONS ............................... 2-1
MAINTENANCE SPECIFICA-
TIONS ............................... 2-2
TIGHTENING TORQUES . 2-7
CABLE ROUTING
DIAGRAM....................... 2-12
CHAPTER 3
REGULAR INSPEC-
TION AND AD-
JUSTMENTS
MAINTENANCE
INTERVALS...................... 3-1
PRE-OPERATION
INSPECTION AND MAINTE-
NANCE ............................. 3-3
CONTENTS
ENGINE ............................ 3-5
CHASSIS .......................... 3-8
ELECTRICAL ................. 3-18
CHAPTER 4
ENGINE
SEAT, FUEL TANK AND
SIDE COVERS.................. 4-1
EXHAUST PIPE AND SI-
LENCER ........................... 4-3
RADIATOR ....................... 4-5
CARBURETOR AND REED
VALVE .............................. 4-7
CYLINDER HEAD, CYLIN-
DER AND PISTON ......... 4-12
CLUTCH ......................... 4-19
KICK SHAFT AND SHIFT
SHAFT ............................ 4-23
YPVS GOVERNOR......... 4-28
WATER PUMP................ 4-30
CDI MAGNETO............... 4-33
ENGINE REMOVAL ....... 4-35
CRANKCASE AND CRANK-
SHAFT ............................ 4-39
TRANSMISSION, SHIFT
CAM AND SHIFT FORK. 4-44
CHAPTER 5
CHASSIS
FRONT WHEEL AND REAR
WHEEL ............................. 5-1
FRONT BRAKE AND REAR
BRAKE ............................. 5-6
FRONT FORK................. 5-16
HANDLEBAR ................. 5-24
STEERING...................... 5-29
SWINGARM.................... 5-33
REAR SHOCK
ABSORBER.................... 5-38
CHAPTER 6
ELECTRICAL
ELECTRICAL COMPO-
NENTS AND WIRING DIA-
GRAM ...............................6-1
IGNITION SYSTEM...........6-2
CHAPTER 7
TUNING
ENGINE.............................7-1
CHASSIS ..........................7-6