If fiddling with wires gives you the heebie-jeebies, just buy an aftermarket speed controller for about $100. It replaces the factory brain box and lets you dial in your speed with a little knob. Suddenly, you’re the DJ of velocity. Turn it up for the back nine, turn it down when the ranger gives you the stink eye.
This is the “rich uncle who doesn’t care” approach. It costs more, but you also don’t have to lie on your back under a cart that smells like old batteries and regret.
How to Remove the Governor From a Gas Golf Cart Golflink.com