A Yamaha golf cart can be useful when you are out on the course; but, an older cart may just be too slow. To speed it up simply disable the governor. The process doesn't remove the governor, instead it completely reroutes the cables that go to and from the governor.
Difficulty: Moderately Easy
Find the small cable that runs from the carburetor to the governor. Remove the cable from the carburetor. The cable is about the width of a nightcrawler and controls how much of a reaction pressing the gas pedal has on the horsepower emitted from the carburetor.
Follow the cable from the carburetor to the governor. The governor sits on the top middle of the engine. Disconnect the cable from the governor.
Reroute the gas pedal cable to the carburetor. This cable is similar in size to the cable you disconnected from between the carburetor and the governor. Without disconnecting the cable from the gas pedal, find where it attaches to the governor. Disconnect the cable at the governor and then reroute it and connect it to the carburetor.
Adjust the gas pedal. There is a small bolt on the shaft of the gas pedal. Remove this bolt with a wrench. Once you've done that, you can change the distance of travel for the gas pedal and reconnect the bolt. This will give you the ability to open up the carburetor. You may need to make some small adjustments with the pedal in order to get the carburetor to function properly before you tighten the bolt.