Yamaha YZ125 2-Stroke Cyclepedia Printed Motorcycle Service Manual 2005 – 2021

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Do you need to repair your Yamaha YZ125 2-stroke motorcycle? The Yamaha YZ125 2-Stroke Cyclepedia Press LL Printed Motorcycle Service Manual features detailed black and white photographs and wiring diagrams, complete specifications with step-by-step procedures performed and written by a veteran Yamaha dealer trained technician.

Buy the book and get 1 year of access to the Cyclepedia online manual, free!

The Yamaha YZ125 two-stroke online manual covers:

2005 Yamaha YZ125T
2006 Yamaha YZ125V
2007 Yamaha YZ125W
2008 Yamaha YZ125X
2009 Yamaha YZ125Y
2010 Yamaha YZ125Z
2011 Yamaha YZ125A
2012 Yamaha YZ125B
2013 Yamaha YZ125D
2014 Yamaha YZ125E
2015 Yamaha YZ125F
2016 Yamaha YZ125G
2016 Yamaha YZ125XG
2017 Yamaha YZ125H
2017 Yamaha YZ125XH
2018 Yamaha YZ125J
2018 Yamaha YZ125XJ
2019 Yamaha YZ125K
2019 Yamaha YZ125XK
2020 Yamaha YZ125
2021 Yamaha YZ125

Table of Contents

Quick Reference
Torque Specs
VIN and Engine Number

Periodic Maintenance
Periodic Maintenance Chart
Air Filter Servicing
Brake Bleeding
Brake Fluid
Brake Inspection
Clutch Cable Inspection and Adjustment
Compression Check
Cylinder Head, Cylinder, Piston, Exhaust Valve Cleaning
Chain Drive and Guides
Engine Idle Speed
Front Suspension Settings
Fuel Filter
Fuel Line
Rear Suspension Settings
Silencer Inspection
Spark Plug
Steering Head Inspection and Adjustment
Suspension Inspection
Throttle Free Play
Torque Check Points
Transmission Oil

External Components
Brake Pedal
Exhaust System
Fuel Tank
Side Stand (YZ125X)
Sub Frame

Cooling System
Water Pump

Cylinder Head
Piston and Cylinder
Exhaust Valve (YPVS)
Exhaust Valve Governor
CDI Magneto
Clutch Removal
Clutch Installation
Primary Drive Gear
Right Side Crankcase Cover
Kick Starter
Engine Removal
Engine Installation
Crankcase Splitting
Crankcase Bearings and Seals
Crankcase Assembly
Crankshaft and Rod
Transmission Removal
Transmission Installation

Fuel System
Air Box
Carburetor Removal
Carburetor Disassembly
Carburetor Assembly
Carburetor Installation
Fuel Level Adjustment
Reed Valve

Final Drive
Drive Chain
Engine Sprocket
Rear Wheel Sprocket

Front Caliper
Front Master Cylinder
Rear Caliper
Rear Master Cylinder
Rotor (Front or Rear)

Front Suspension
Fork Removal and Installation
Fork Disassembly
Fork Assembly

Rear Suspension
Shock Absorber
Suspension Linkage
Swing Arm

Steering Head Removal
Steering Head Installation

Front Wheel
Rear Wheel
Wheel Inspection
Bearing Replacement

Electrical System
Ignition System
Solenoid Valve
TPS (Throttle Position Sensor)
Wiring Diagrams

Additional information

Weight 2.3 lbs
Dimensions 14 × 15 × 2 in