The Tachometer for your golf cart has multiple settings to change between all 2-Stroke or 4-Stroke gas powered engines. The Tachometer will show both engine RPM and hours of operation. Will help you know when it is time to change your oil by keeping track of home many hours you have run since last change.
You can reset total hours run and maintenance time as you please. Just wrap the wire around your spark plug cable and mount the readout gauge in a convenient location.
I have personally used one of these tachometers on my gas EZGO Marathon, a Kymco scooter and my lawnmower for tuning. Hope this helps.