ok my rustler wont run for crap. i pu the electric start to the back of it and all it will do is crank up and as soon as i let go of the button it stops. so i figured hole in the fuel hose cuz i couldnt see any of it going to it. i checked it and theres no hole. what else could it be... cant be the spark plug can it.. its only 4 days old!??![:@] please help???