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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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08-03-2018, 03:46 PM | #1 |
Not Yet Wild
Join Date: May 2015
Posts: 5
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Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help?
I have a yamaha Drive (2013) with the moric controller. The cart stopped running and we put a used controller from a 2014 cart that was running good. a week later the cart failed again. Could something outside of the controller be frying them.
I have plenty of take off parts from other yamaha's that we have upgraded to 500amp sepex conversions, but I don't want to ruin another good controller without finding out what could be causing this. Solenoid is new and good (tried it on another cart). |
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08-03-2018, 03:48 PM | #2 |
Gone Wild
Join Date: Oct 2017
Location: Harrisburg, PA
Posts: 380
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
Motor shorted maybe? Drawing too much power? Or harness rubbed through at some point.
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08-03-2018, 03:59 PM | #3 |
Not Yet Wild
Join Date: May 2015
Posts: 5
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
Are you talking about the main wiring harness? I could swap the motor with a used one I have, but is there a way to test it without doing that?
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08-03-2018, 04:00 PM | #4 |
Gone Wild
Join Date: Oct 2017
Location: Harrisburg, PA
Posts: 380
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
Most likely the main harness, if the motor wiring was grounding out there would be probably much sparkage. You can fully disconnect the motor and test with an ohm meter each set of terminals and from each to ground.
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08-03-2018, 04:30 PM | #5 |
Not Yet Wild
Join Date: May 2015
Posts: 5
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
Would the "much sparkage" be inside the motor? Because when the first controller went out i heard an electrical sizzle that sounded kind of like i was welding, just not as loud, coming from somewhere back there.
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08-03-2018, 05:57 PM | #6 |
Gone Wild
Join Date: Oct 2017
Location: Harrisburg, PA
Posts: 380
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
It would have occurred inside the motor if the motor was shorted. Or could have been inside the controller, when it died. If you didn't see any damage to the main harness then the noise probably came from one of those two.
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08-03-2018, 07:15 PM | #7 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
I would pull, disassemble and inspect motor. If motor is damaged enough to sizzle, the damage will be visible.
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08-04-2018, 09:26 AM | #8 |
Not Yet Wild
Join Date: May 2015
Posts: 5
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
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08-04-2018, 10:49 AM | #9 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,122
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
Most likely bad motor brushes. The Hitachi motor has very undersized brushes and it fails often.
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08-11-2018, 09:45 AM | #10 |
Not Yet Wild
Join Date: May 2015
Posts: 5
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Re: Yamaha Drive Controller gone out, replaced then 2nd one failed a week later -Help
I took the motor apart, the brushes look good and the armature is nice and clean. I tested the posts to see if they are grounded to motor case and they are not. everything on the motor looks good.
Does anyone have a pinout diagram for the yamaha drive so i can test the harness? |
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