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Unread 09-19-2011, 09:46 PM   #1
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Question '91 EZ Go Marathon - Still no power!

I have a 91 Marathon. Had no power when I bought it but it did run. Replaced batteries, potentiometer (velocity control) and controller. With batteries fully charged t still has trouble going up any incline. Is the motor next? Any ideas appreciated.
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Unread 09-19-2011, 09:51 PM   #2
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Default Re: '91 EZ Go Marathon - Still no power!

First the obvious... can you push it easily? .. does it roll easily on flat ground?

Then the pot question, did you inhale, Mr President?

I mean, why did you change the pot and does it match the controller throttle program? You sure? Double sure?
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Unread 09-19-2011, 09:58 PM   #3
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Default Re: '91 EZ Go Marathon - Still no power!

I can't say that I have tried to roll it. If it doesn't roll easily what does that mean?

I just changed the pot (after all I am the President and I can do what I want) without knowing that it had to match the controller program. I know gas engines but nothing about these electric vehicles. How does that work?
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Unread 09-19-2011, 10:01 PM   #4
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Default Re: '91 EZ Go Marathon - Still no power!

Resistance, man. the more resistance there is the harder the motor has to work to achieve anything.
I noticed you skirted the pot question.
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Unread 09-19-2011, 10:10 PM   #5
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Default Re: '91 EZ Go Marathon - Still no power!

It doesn't seem like anything is dragging or that the brakes are hanging up.

(I refuse to answer. "I did not inhale" Bill Clinton)

I just started changing parts. First batteries - no improvement; then a new controller, nothing and last, the potentiometer - still no improvement. It seems fine, if not overly fast, on flat ground.
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