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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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08-07-2018, 11:47 AM | #1 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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G9 only creeping
Hello all, I have an odd issue with a Yamaha G2/G9 here. The cart is only creeping when the solenoid is activated as if the contact board and resistors aren't working. The resistor coils are heating up like power is flowing but the cart will only creeping 6mph and will not climb hills etc. I have cleaned the contact board and replaced the moving contact due to wear and still nothing. I used my multimeter to test and make sure power was flowing from the moving contact through the stationary contacts and to the coils and I'm getting connectivity. I'm not really sure where else to go from here. Any help is appreciated!
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08-07-2018, 12:29 PM | #2 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: G9 only creeping
How new are the batteries and what’s the voltage? A resistor cart would be a G2.
Club Car DS driver’s club #59 |
08-07-2018, 02:06 PM | #3 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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Re: G9 only creeping
Batteries are brand new, test good and charger charges cart.
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08-07-2018, 02:17 PM | #4 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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Re: G9 only creeping
To be a little more specific the batteries are from may of this year. They all hold on the load test good. The cart was parked and charged at night and the next day it was running very slow.
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08-08-2018, 12:48 AM | #5 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: G9 only creeping
Not totally sure, the "red hot coils" thing happens when sitting still, or only after driving it at snail speed for a while? Luke, I also used to think G2s were all resistor carts, and all G9 were solid state, but some G9 were also resistor cars.
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08-08-2018, 07:05 AM | #6 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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Re: G9 only creeping
The coils aren't really getting red hot. You can feel the heat from them after driving it around like normal. Its driving as if the whole contact board isn't working. There is no progressive acceleration as you pass from contact to contact. All wires are in good condition too. That's why I'm confused here. I've dealt with these carts running slow but it's always been the moving contact isnt making a connection to the contact board. Not this time though. Everything looks correct. The cart is running creep speed off solenoid activation only.
Could it be the coils?? Why would the coils be bad if they are heating up like normal operation. Sent from my Pixel XL using Tapatalk |
08-08-2018, 07:09 AM | #7 | |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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G9 only creeping
Quote:
The coils should not heat up with the pedal to the floor driving, because the resistors are out of the circuit. If they do that definitely indicates a contact board problem of some sort. If not, it may be a motor issue. Club Car DS driver’s club #59 |
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08-08-2018, 08:32 AM | #8 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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Re: G9 only creeping
So when the cart is floored the coils are bypassed. They are still heating up when floored. Next on my list now, I'll check the motor for a short.
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08-08-2018, 08:35 AM | #9 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: G9 only creeping
You have a coil/control board problem if they are still heating up when the pedal is floored.
Club Car DS driver’s club #59 |
08-08-2018, 08:45 AM | #10 |
Not Yet Wild
Join Date: Feb 2015
Posts: 55
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Re: G9 only creeping
What do you think could be wrong with the contact board to cause this? Everything is in good shape on the board. The arm is swiping across every contact to the last one and all the wires are in tact. Idk what else could be wrong with it.
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