whats the problem, i drove it a few days ago and ran great,and put it on a trailer yesterday,and it was everything it had to get onto the car dolly. and then got it to my dads,and started it to come off,and it no sooner than got off the trailer,and shutoff,never to start again. we tried and tried,tried timing,its got gas coming to it,and has spark,just wont start.....