I am assuming the 2020 Yamaha is an EFI golf cart, if so, look at the red engine light when you turn it off the next time you feel the heat. If the light is flashing, the is an error code. The first set of long pulses followed by a second set of shorter pulses, this is the first digit and then the second digit of the error code. If they have not changed I have these for the 2017 model.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.
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