2001 Yamaha G16-EW "ULTIMA" (36V - DC MOTOR) Service and ...
Model code G16EW identifies the 2001 ULTIMA with the 36-volt DC motor. Its factory service manual is LIT-19616-G1-60, the same reference that serves the rest of the G16 line.
Seven model years sit in that book, 1996 to 2002, and so do thirteen related models: the electric G16-EP, G16-ER, G16-ES, G16-ET, G16-EU and G16-EX, and every carburetted G16 Yamaha built. Sharing one volume across the platform reflects how little the cars changed underneath.
The writing is factory writing. Repairs are sequenced, clearances are stated with the limits they must meet, fasteners carry torque figures, and the electrical chapters give the circuits as drawn on the production line together with the tests to run on them. Fault-finding begins with the symptom and narrows from there.
Read the code plate. It should say G16EW.