A 1991 carburetted G2 is coded G2 - AD, and its service coverage sits in Yamaha part number LIT-19616-G9-93.
Eleven model years, 1985 to 1995, and thirty-one other models share that volume, from the earliest G2 through the G2-A, G2-AB, G2-AC, G2-AF and G2-AG carb cars, the full 36-volt electric series, and the G9 FLEET MASTER and FLEET CLASSIC range in both drive types.
Why factory material matters here
These cars are old enough that most surviving figures online are second-hand. The manual gives the original torque values, service limits and clearances, the wiring as Yamaha built it, and a diagnostic order to follow instead of parts to swap.
Verify the code plate reads G2 - AD and the fitment is right.
