This is the same manual that your local dealer uses to diagnose & service your dirtbike!!

Factory Service Manual Download
300+ PAGES OF VERY USEFUL INFORMATION FOR MAINTAINING AND REPAIRING YOUR YAMAHA YZ125 99-06.

HERE IS WHAT THE MANUAL COVERS

General Information

Periodic Maintenance

Fuel System

Cooling System

Engine Top End

Engine Right Side

Engine Lubrication System

Engine Removal/Installation

Crankshaft/Transmission

Wheels/Tires

Final Drive

Brakes

Suspension

Steering

Brakes

Electrical System