got a 99 honda trx 300 4x4 it sat for about 2 years in a garage. changed all the essentials. plug, battery, gas. oil/ filter/ air filter and carb. still cant get the damn thing to start. just turn over a few times once i primed the carb with the primer plug and then it dies once the gaas is gone. i checked the gas flow and that dont seem to be a problem either. backfired once while trying to get it started. NEED HELP My local atv shop wants 85 bucks just to look at it