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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



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Unread 05-19-2017, 12:23 PM   #1
Not Yet Wild
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Location: Jefferson City, TN
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Default yamaha being jerking and being sporadic

ok guys I have a g29 Yamaha 07. The cart has a newer controller and batteries installed about 1 year ago. the problem I'm having is the cart will run sometimes but not all the time. when it does run, it jerks and runs sporadic. I thought for sure it was the throttle position sensor, but it wasn't. Then changed out the motor speed sensor and that didn't work either. Any ideas? I usually don't mess with Yamaha and don't have any manuals on them.
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Unread 05-19-2017, 01:11 PM   #2
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Default Re: yamaha being jerking and being sporadic

I also noticed when it doesn't run, if I jack it up and spin the rear wheels at will start to run and kick on and off.
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Unread 05-19-2017, 02:43 PM   #3
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Default Re: yamaha being jerking and being sporadic

Motor. Pull it & check the brushes & commutator.
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