Model code YFZ350U belongs to the 1988 Banshee, and the factory book for it is numbered LIT-11616-YF-36.
There is one thing to understand about this manual: Yamaha used it for fifteen model years, 1987 through 2001. Nothing has been left out for 1988 as a result. The wider coverage simply means the differences between seasons are documented where they matter, which is exactly what you need on a machine this well used and this often modified.
The procedures are the dealer ones. Engine teardown and rebuild with the specified clearances, carburetor and fuel system service, clutch, transmission and final drive, brake and suspension work, and a complete electrical section with wiring diagrams. Torque values sit alongside the steps they apply to, and the fault-finding chapter works from the complaint back to the cause.
