91 Ez GO CUTS OUT AT 3/4 THROTTLE

Carsfred · 06-15-2008, 11:28 PM

HAVE JUST BOUGHT A 91 EZ-GO 36 VOLT GOLF CART. HAD TO REPLACE 4 OUT OF SIX BATTERIES AND GOLF CART RUNS GREAT BUT AT 3/4 TO FULL THROTTLE IT ACTS AS IF YOU SHUT KEY OFF. ANY IDEAS? Works good in reverse. Is there a high speed mode that may not be working?

pggroves · 06-16-2008, 08:10 AM

Which type of electrical system? Is it a resistor setup or does it have an electronic speed controller?

Carsfred · 06-16-2008, 10:45 PM

Cart has electronic speed controller.

roady89 · 06-17-2008, 06:34 AM

The throttle for that model uses a potentiometer that runs from 0-5k ohms. 0 ohms being 0% throtle ans 5k being 100% throttle. Sounds like either your throttle pot (PB-6) is either going out of range or is just bad. You will need a volt/ohm meter to check it. Place the meter on ohms and probe the 2 signal wires.

Second theory. Check your F/R switch contacts. You may be losing connection when the cart gets under load.

There is no "high speed mode" to speak of. Only 100% throttle.

cpgolez · 07-19-2008, 10:20 PM

I have a similar problem.. when you press the pedal, it just clicks but doesn't run so you release a little bit and it goes but the speed is jumpy, not smooth at all. I bought a new potentiometer because i was told by my a mechanic that the pot was busted. It still doesn't go...

06-15-2008, 11:28 PM	#1
Carsfred Not Yet Wild Join Date: Jun 2008 Posts: 2	91 Ez GO CUTS OUT AT 3/4 THROTTLE HAVE JUST BOUGHT A 91 EZ-GO 36 VOLT GOLF CART. HAD TO REPLACE 4 OUT OF SIX BATTERIES AND GOLF CART RUNS GREAT BUT AT 3/4 TO FULL THROTTLE IT ACTS AS IF YOU SHUT KEY OFF. ANY IDEAS? Works good in reverse. Is there a high speed mode that may not be working?
Carsfred Not Yet Wild Join Date: Jun 2008 Posts: 2

06-16-2008, 08:10 AM	#2
pggroves steeplejack x Join Date: Jan 2007 Location: Republic of Texas Posts: 3,382	Re: 91 Ez GO CUTS OUT AT 3/4 THROTTLE Which type of electrical system? Is it a resistor setup or does it have an electronic speed controller?

06-16-2008, 10:45 PM	#3
Carsfred Not Yet Wild Join Date: Jun 2008 Posts: 2	Re: 91 Ez GO CUTS OUT AT 3/4 THROTTLE Cart has electronic speed controller.
Carsfred Not Yet Wild Join Date: Jun 2008 Posts: 2

06-17-2008, 06:34 AM	#4
roady89 nimda Join Date: Jun 2007 Posts: 13,023	Re: 91 Ez GO CUTS OUT AT 3/4 THROTTLE The throttle for that model uses a potentiometer that runs from 0-5k ohms. 0 ohms being 0% throtle ans 5k being 100% throttle. Sounds like either your throttle pot (PB-6) is either going out of range or is just bad. You will need a volt/ohm meter to check it. Place the meter on ohms and probe the 2 signal wires. Second theory. Check your F/R switch contacts. You may be losing connection when the cart gets under load. There is no "high speed mode" to speak of. Only 100% throttle.
roady89 nimda Join Date: Jun 2007 Posts: 13,023

07-19-2008, 10:20 PM	#5
cpgolez Not Yet Wild Join Date: Nov 2007 Location: Philippines Posts: 8	Re: 91 Ez GO CUTS OUT AT 3/4 THROTTLE I have a similar problem.. when you press the pedal, it just clicks but doesn't run so you release a little bit and it goes but the speed is jumpy, not smooth at all. I bought a new potentiometer because i was told by my a mechanic that the pot was busted. It still doesn't go...

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