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| Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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Thread Tools | Display Modes |
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03-19-2017, 12:20 PM
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#1 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Stutter on start
Have a 2008 Yamaha Regen with brand new batteries. Intermittent "stutter" on starting up. Don't have a Yamaha dealer close. Really looking for a DIY solution. Local dealer said they checked the batteries and it must be a controller or Moter and to take to Yamaha dealer (they put in the new Trojan batteries). What I have been able to see is a bad battery. Any suggestions where to start?
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03-19-2017, 01:22 PM
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#2 |
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Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Stutter on start
Check that tach sensor is plugged in, it's on the end of the motor, 3 wires, white plug. Are you saying you have determined you have a bad battery in the new ones?
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03-19-2017, 01:53 PM
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#3 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Re: Stutter on start
I don't know if I have a bad battery. The dealer that put the new ones in said they checked them and that it must be Moter or controller, take it to a Yamaha dealer...$70 for that after just paying them $775 for new batteries. Needless to say, not too happy with them.
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03-19-2017, 02:15 PM
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#4 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Re: Stutter on start
I don't know if I have a bad battery. The dealer that put the new ones in said they checked them and that it must be Motor or controller, take it to a Yamaha dealer...$70 for that after just paying them $775 for new batteries. Needless to say, not too happy with them. I checked the plug you suggested, unplugged and cleaned, plunged back in. If start off slow, it doesn't seem as much stutter, but it is just at a certain speed maybe. Obviously, I don't know much about carts, but am handy.
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03-19-2017, 06:10 PM
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#5 |
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Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Stutter on start
OK, follow charge wires from charge port to batteries. Make sure they were landed on the same battery terminals that feed the controller, not skipping any batteries.
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03-20-2017, 11:06 PM
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#6 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Re: Stutter on start
Did that as well. Seems to be right. Someone suggested throttle sensor. Do you think it could be that?
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03-20-2017, 11:32 PM
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#7 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Re: Stutter on start
Ok, did the push test and checked the wires, both seem to be right. Any other suggestions? Some one told me maybe the throttle sensor?
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03-21-2017, 12:55 AM
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#8 |
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Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Stutter on start
Throttle sensor plug will have 3 wires. Orange (5v+), black (b-) & green (green or blue). The (green or blue) is the signal. Signal will be roughly 0.4v when throttle at rest, and roughly 4.7v at full throttle, with a clean smooth sweep as pedal is pressed.
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03-23-2017, 12:00 PM
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#9 |
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Not Yet Wild
Join Date: Mar 2017
Posts: 18
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Re: Stutter on start
Sorry, haven't been able to get to it for a while. Trying to test TPS, cart switch off, seems like it either starts at near 5v or jumps quickly to that. Can TPS be cleaned?
Also, I noticed when coasting to a stop while driving, sometimes the beeper and resistance kick in, sometimes not. |
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03-23-2017, 02:15 PM
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#10 |
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Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Stutter on start
Can't be cleaned. It's a non-contact solid state device.
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