it ran about 2 months ago and i just put new gas in it about a week ago when my friend looked at it, theres fuel flow to the carb and the piston looked good, he also checked the spark plug and it had spark, its brand new, i bought it thinking it was the problem but come to find out it wasnt the problem. and we didnt check the reeds, but the air filter cant come off because the bolt broke inside and i have no idea how to fix that or get it out now. if you or anyone else has any ideas of how to please let me know. and since we never checked the reeds then i will have to do that next time i look at it. my friend also said it could be the stater coils, the timing key/chain, and/or the points in the engine. so i have no idea what it could be, theres a few things it could be and i dont know where to start at.