1982 Yamaha CHAPPY Service and Repair Manual

The 1982 Chappy closes out the LB50P series, and the factory manual that covers it is LIT-11616-01-11. This machine's model code is LB50PJ.

Yamaha wrote the volume for 1979 through 1982 rather than issuing four separate books, which means the procedures for your machine sit alongside those for the earlier cars, with differences identified where they exist. For someone maintaining a survivor, that breadth is an advantage: earlier parts often end up on later machines, and the manual shows both.

Scope covers periodic maintenance, engine overhaul with inspection and clearance data, carburettor and ignition settings, chassis and brake service, torque values, wiring diagrams and troubleshooting. Verify the LB50PJ code before you rely on any specification here.