Hey Paul, if it was your flywheel it would not start backfire if any thing. It sound like a carb problem. Take off the air filter and have some one pull it while you put your thumb in the intake. Once it starts you can put your thump half way across the intake to keep it running.If it does start get a new air filter. Part two. If it doesstart but dies in a minute check that the vent hole in the gas cap is clear. Most can't pull from a vaccum. Good true.
lonniebabb
August 2007