2005 Yamaha G23-AZ "UMAX MEDIUM DUTY I" (CARB) Service and Repair Manual

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Owners of the 2005 G23-AZ UMAX Medium Duty I will want LIT-19616-G2-30 to hand. The code for this carbureted car is G23AZ.

Yamaha wrote one service manual for the 2004 to 2009 UMAX cars, nine variants covering the gas and 48-volt electric versions. Six model years in a single binding, with the year notes kept in the procedures rather than a separate supplement.

The sections that earn their keep

  • Brake and parking brake adjustment, with measured limits
  • Rear axle and drive train overhaul
  • Carburetor and engine service, clearance tables included
  • Electrical diagnosis with complete wiring diagrams

A car of this type spends its life loaded and idling, and the factory's maintenance intervals reflect that. Working to them, and to the printed torque figures, is what keeps the repairs from repeating.

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