problems with 1991 550 ext special
sled ran for a half mile strech then i turned around and it stopped running, but i could get it back running but it would not go any where it would only get up to 2000 rpm. then i let it sit for about an hour and went and started it up and it drove fine except when it first started out i had to feather the gas alittle before it got going good. then i parked the sled and it will not start it was left over night then it started up with one pull. then i ran it for a little bit at 8-9000 rpm and it "dogged" out and quit running.