Club Car speed control was bad, replaced MCOR 

22X11.00-10 Tire size RHOX wheels

@@countrylivingwiththewades8784 I finally bit the bullet and bought a new motor and controller for my '03 club car. The wimpy 3.2HP motor from the factory couldn't handle the lift, larger tires, and rear seat addition.

I thought about it because I'm a tinker. But if the potentiometer wiper is not making good contact, it's usually not worth messing with

just brought from Amazon

Buy oem mcor, cheap China ones don't last.

I think this golf cart has 3 speeds. There is a handheld programmer to change it to another but it is not cheap. Mine used to go slow but I found that if I have the peddle pressed then turn the cart on, it will go in high speed. after doing this several times over a few weeks, it just stayed in high speed. Also, if the splines are lined up correctly it should not make a difference in your speed from what you had before.

Most likely batteries

@@countrylivingwiththewades8784 Thanks

There are many sensors types. A reed switch (on/off) is activated by a magnet. In the mower engine, it is the speed of the magnet passing by the the coil that causes the spark. The coil is not a sensor, i.e. lines of flux cutting the wires of the coil.

​@@countrylivingwiththewades8784 00⁹

I need a little more info. Does it have an MCOR module? Are you referring to rate of acceleration or did you mean adjust top speed? Are your batteries weak? Weak batteries will always have slow acceleration.