Re: Yamaha gas cart starting problem
If the starter/generator is not turning then you need to find out where the humming is coming from. I'm guessing either the solenoid or a relay somewhere.
Have you tried using a jumpstart box or hooking up jumper cables to it? If neither is really an option, I'd simply pull the battery out and have it tested before going too crazy trying to figure it out. most of the time a buzzing noise is just a relay chattering from low voltage.
Worth taking 5 minutes to clean the battery posts and cable terminals with a wire brush real good too. a lot of dirt tends to make its way between the cable and the post and can make bad contact and cause problems.
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