2026 Yamaha YZ250 Service and Repair Manual

For the 2026 model year Yamaha assigned LIT-11626-39-07 to the YZ250, code YZ250TL, and covered the YZ250 70th Anniversary Edition in the same book. One volume, two machines, identical mechanical instructions.

What a rider gets is the factory sequence for every job: cylinder and piston service with the measurement limits, power valve cleaning and timing, clutch replacement, crankcase splitting and gearbox work. Carburetor and ignition settings are the ones Yamaha specified rather than a tuner's preference, which matters when a bike is being returned to a known baseline.

Suspension, brake and wheel procedures follow with their torque figures, and the electrical chapter supplies the wiring layout plus test values for tracing a no-spark condition.

Read the code off the frame and confirm it says YZ250TL. Quoting that along with LIT-11626-39-07 removes any doubt about fitment before you start ordering parts.