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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 08-31-2013, 08:16 PM   #1
superuo
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Default 91 EZGO Marathon will not go forward or reverse

Everything else is working except it wont go and reverse buzzer is not working. It was working both directions except occasionally while driving, it would stop accelerating until you lifted your foot off the pedal and put it back down. Charged it up one night and when I got in I depressed the accelerator and it lurched forward and never moved again.

There is no click when the pedal is depressed

Reading at receptacle is 38.0v

Not sure where to start.
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Old 09-03-2013, 10:06 PM   #2
superuo
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Default Re: 91 EZGO Marathon will not go forward or reverse

bump
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Old 09-03-2013, 10:13 PM   #3
Sir Nuke
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Default Re: 91 EZGO Marathon will not go forward or reverse

seeing as you do not have the solenoid CLICKING, you need to start with the solenoid activation circuit.
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Old 09-05-2013, 06:47 PM   #4
superuo
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Default Re: 91 EZGO Marathon will not go forward or reverse

Ok it's clicking now, the solenoid, in both forward and reverse, but the acceleration is intermittent. It will be driving on a straight and level path in forward and the acceleration will fail and you will have to release the pedal and depress it again to keep it moving. If you keep it depressed, the cart will drift to a stop. Same happens in reverse.

What should I check next?
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Old 09-05-2013, 06:59 PM   #5
scottyb
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Default Re: 91 EZGO Marathon will not go forward or reverse

I think the micro switch on the potentiometer is failing.....
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Old 09-07-2013, 04:13 PM   #6
superuo
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Default Re: 91 EZGO Marathon will not go forward or reverse

Quote:
Originally Posted by scottyb View Post
I think the micro switch on the potentiometer is failing.....
The potentiometer is an adjustable type of electrical component correct? where would I find that, in the control box? This is only my second cart to work on.
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Old 09-08-2013, 05:06 AM   #7
yurtle
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Default Re: 91 EZGO Marathon will not go forward or reverse

Throttle, or "gas". Check the stickies and download the manuals.

Owner's, Parts, and Service Manuals:
http://www.buggiesgonewild.com/elect...g-manuals.html
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Old 09-08-2013, 09:59 AM   #8
scottyb
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Default Re: 91 EZGO Marathon will not go forward or reverse

The picture below shows the potentiometer with the micro switch in the yellow circle.
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File Type: jpg IMG_4920.JPG (955.5 KB, 0 views)
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Old 09-08-2013, 02:44 PM   #9
yurtle
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Default Re: 91 EZGO Marathon will not go forward or reverse

I've never seen one live. Is it wire-wound? Is it round or linear?
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Old 09-08-2013, 06:39 PM   #10
JohnnieB
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Default Re: 91 EZGO Marathon will not go forward or reverse

Quote:
Originally Posted by yurtle View Post
I've never seen one live. Is it wire-wound? Is it round or linear?
I've never laid eyes on one either, but what is shown in attached drawing would have to be a round type since the lever-arm rotates the shaft.
Also looks like it goes from 0K to 5K in <90° of arc.
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File Type: jpg Pot Box lever and rods.JPG (58.1 KB, 0 views)
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