Quote:
Originally Posted by tophcfa
What are your thoughts on the way Yamaha wires voltage regulators, where they often are charging the battery well above the recommended voltage of approximately 14.5. I rewired both of our Yamahas using Villagetinker’s wiring diagram and the charging voltage went dow from 16.5 (2014 EFI) and 15.8 (2022 Quiet Tech) to 14.5 on both carts. That should significantly increase battery life on the carts.
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Yamaha wiring is not good. I think the wiring harness uses 20 gauge wire, which is inadequate. My 2009 cart came with halogen headlights. With the headlights on, pressing the brake pedal would dim them. I put them on a separate dedicated circuit, with its own fuse, using some leftover 14 gauge house wire from the battery to the light switch. No more dimming lights. Six years later I find the insulation on the original wiring from the switch to the lights is heat damaged. The factory wiring is just inadequate.