2014 Yamaha gas golf cart just stops or will not start up and go after running for a while..No juice to the switch gas Gage , nothing.... after a "REST" it will start again, and run fine ... I am starting a lot, walking my dog, so stop and go... then it will just not go... Think I know it is electrical, but that is the end of my knowledge... So where do I start or what do I replace????