2006 Yamaha YZ125 Service and Repair Manual

The 2006 YZ125 carries model code YZ125V, and Yamaha's service manual for it is part number LIT-11626-19-35. One model year, one book.

Much of what an owner does to one of these is scheduled rather than reactive: top end at an interval, gearbox oil, suspension service, clutch inspection. The factory manual gives each of those jobs a procedure and a set of figures, which is what keeps a maintenance schedule from turning into approximate work. When something does go wrong, the troubleshooting sections take symptoms back to causes in the order the factory found most productive.

Specifications cover the engine internals, fuel system, ignition, frame and suspension, with torque tables throughout and a wiring diagram for the electrical side. Match YZ125V against your frame label before ordering so the book and the bike agree.