I will have pics up this weekend. I picked it up for $1500 to use as a pit vehicle at the track. Today we are taking off the body so I can paint it to match the trailer. It is a gas yamaha cart. I did some more research and I'll post what I come up with just in case anyone here goes golfing in the near future and wants to have a little bit of extra speed.
On the rear transaxle, there is a linkage with a spring-loaded arm, accessible only from the drivers side just visible almost under, but behind the muffler. To simply turn up the governor without disabling it, all that must be done is to tighten the nut (10mm wrench or socket) until it pulls the two spring-loaded arms together as closely as it can.