Motor controller and Motor match?

[segibbs]

Hi,
I have a '78 or so (no ID tag) Club Car that I converted to use a standard issue Club Car speed controller with a multi-step pot. I have it all wired correctly with no loose wiring or anything of the sort. I have had a few people double check the wiring to be sure I installed it as seen in the schematics. The pot is putting out 0 to 5K resistance. I'm wondering if the original motor can handle the DC voltage coming out of the speed controller or if I need to switch out the motor with a newer one? I can jump the motor controller and the motor will of course jump right into high speed. Someone was telling me that the DC voltage coming out of the speed controller is pulsed, almost like a AC voltage and the older motor doesn't know what to do with it...

Anyone have any thoughts on this?

Thanks,
Scott