For a 1982 G1-E3 the correct reference is the later G1 manual, Yamaha part number LIT-11616-G1-83. The car is listed there under model code G1-E3.
Thirteen variants across 1982 to 1989 are covered, electric and carbureted alike, so one volume serves the whole late run of the model.
Electrical content leads: motor and contactor testing, control circuit checks, the charging system and the complete wiring diagram, all with specified values rather than general advice. From there the book moves through the rear axle, brake service and adjustment, steering and front suspension, giving removal order, wear limits and torque figures. The periodic maintenance schedule sets intervals. If you are trying to bring a long-parked car back to service, that combination of diagram and specification is what makes methodical work possible.
