2007 Yamaha G23-AE "UMAX MEDIUM DUTY I" (CARB) Service an...
LIT-19616-G2-30 is the factory service manual for the 2007 G23-AE UMAX Medium Duty I. The code on the car should read G23AE.
Six model years, 2004 to 2009, and nine variants are covered, which puts the carbureted and electric G23 UMAX cars together in one volume. Yamaha treated them as a family and documented the shared chassis once.
Because these cars carry loads, the sections on brake adjustment, rear axle overhaul and suspension inspection tend to be the most used, and each gives a measurement and a limit rather than an opinion. The carbureted engine is covered from routine adjustment through full teardown, with clearance tables.
Steering, wheels, frame, cargo bed and body work follow, then electrical diagnosis with complete wiring diagrams and component test values. It reads as the factory wrote it, step by step, in the order the work is done.