This is the same manual that your local dealer uses to diagnose & service your 4 wheeler !!

Factory Service Manual Download

244+ PAGES OF VERY USEFUL INFORMATION FOR MAINTAINING AND REPAIRING YOUR YAMAHA TRI-Z 250

HERE IS WHAT THE MANUAL COVERS

General

Specifications

Periodic Maintenance

Engine Overhaul

Carburetion

Chassis

Electrical

Troubleshooting

Wiring Diagram