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Old 03-12-2011, 08:51 AM   #1
Big Chief
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Default Speed fluctuates while driving?

First post... New to the group!

I just picked up a 2003 EZ-GO for rec use in the neighborhood. The person I bought it from added a lift kit and larger tires. Very clean install and overall cart.

I've only had the cart a few weeks... but notice that the cart will actually slow down while cruising for about 30-60 sec... then pick up speed back to normal.

I also noticed, that sometime when moving from a cold start, the same will happen... almost like it needs to "warm up".

Do the size of the tires make a difference? Battery information is shown below? Or is it something with the motor/computer?

The batteries consisted of:

(2) 605 trogan's... less than 2 months old (reciept in hand)
(3) 605 trogan's... approx one year old
(1) 105 trogan's... approx one year old

I used a hydrometer to test all the batt's and all were fine except the 105 which almost had no reading. So I swapped it for a new 605.
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Old 03-12-2011, 08:58 AM   #2
scottyb
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Location: Southern California
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Default Re: Speed fluctuates while driving?

Does the cart have a direction selector toggle switch on the dash?
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Old 03-12-2011, 09:23 AM   #3
Big Chief
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Default Re: Speed fluctuates while driving?

Are you referring to "forward/reverse". If so... NO, I do not have a switch.

I have a mechanical lever under the seat.

The wiring on the cart is very simple. But I am not 100% what is right and wrong. I started looking at some manuals recently.

The only "aftermarket" wiring appears to be headlights/taillights.

The cart model has "Workhorse 800" decals on the sides.
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Old 03-12-2011, 09:31 AM   #4
scottyb
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Default Re: Speed fluctuates while driving?

Yours is a Series cart. The Cause could be worn motor brushes or a faulty ITS (inductive throttle sender).
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Old 03-12-2011, 09:48 AM   #5
Big Chief
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Default Re: Speed fluctuates while driving?

Scotty,

Thanks for the direction... I checked out website... very informative!

So to fix the brushes, the motor needs to come off. Do you happen to have any pics or links to motor removal? I know its pretty straight forward, but figured I check them out before I start turning bolts.

Also... do you have any more info on the ITS? Same reason as above... Is this the device connected to the forward/reverse lever?

Thanks again for your help and direction,
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Old 03-12-2011, 09:50 AM   #6
Big Chief
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Default Re: Speed fluctuates while driving?

I spoke too early about the ITS. I just google'd it now... I see what it is now.

When this things wears... can it be cleaned up? Or does it have to be replaced?

Is there is a way to test it?
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Old 03-12-2011, 10:03 AM   #7
scottyb
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Default Re: Speed fluctuates while driving?

The ITS rarely fails... when it does it usually has been wet, very wet.
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