ok so i just want for a ride n it was running grate! so i get ready to leave i go up a hill to get my bag n i stop put it in neutral hope off to grab the bag n i tern to get back on n all the sudden it starts revving really really high n im like wtf so i hit the kill swith so im looking around for anything rong nothing so i kick it it seems ok so i limp it back to the truck i pull up n stop n put it in neutral n hope off it start revving again n then it gose from really high revving to bogging out n shuts off plz ppl is this the tors going bad or something else????