Need advice troubleshooting 1993 EZGO Marathon

jack up cart and put on jack stands
put tester on continuity
test the #4 micro switches
bad >> replace micro switch
good >>
put tester on ohms
put cart in forward
put neg lead on black wire on controller
put red lead on white wire on controller
slowly press go pedal
if ohms rise potentiometer is good

[stumpdog]

Been running through the troubleshooting checklist. Seems to indicate that the controller might be bad. Don't know about the motor. Can I test the motor without replacing the controller?

motor test

WARNING you don't want to make a big spark anywhere near the battery.

jumper cables may be used
black clip on battery negative,
red clip on motor A1 post, tap the other ends together
note : use 2 wrenches on motor studs to keep them from spinning

[stumpdog]

Thanks! I'll give it a try.

[stumpdog]

Okay. Solved my problem. Finally got the cart off the ground and on stands to access the motor and discovered that I had a bad cable. Actually a relief. Thanks to CT Dummy and ClemsonGuy for your help and a shout out to BGW for creating such a great resource.

But one more question. The reason I didn't spot the bad cable earlier was because it was hidden from view. When I got under the cart what I discovered is that there's a solenoid wired between two of the motor posts and just kinda hanging loose under the motor. (One of the cables off the solenoid was obscuring the broken cable.) I don't see anything like that in the schematics. Why would it be there? Is it some sort of mod? I left it there assuming there's a purpose but I'm curious as to what it is.

Pic attached of solenoid with S1 cable disconnected.

more than likely it was for a " go fast " button
remove it

[stumpdog]

Will do. Thanks.

[Clemsoncartguy]

I was gonna say...uh oh! Someone had a "go fast" button wired on there!

Crash beat me to it.

Pull all that out and just put a new solid wire in place.

[scottyb]

The infamous 'go fast' solenoid. What say you now paint guy ?

Originally Posted by scottyb

The infamous 'go fast' solenoid. What say you now paint guy ?

bwhahahaha