hey i'm just reading your post about wont start. very good job on it, i'm on the last step i have spark and compression but for some reason its just not starting. 500 EFI sportsman i checked and theres gas at the gas qucik connect by the engine but i'm not sure if its making it all the way to the engine I think theres something wrong in the EFI parts no sure never had an EFI before this. I tried pouing a bottle cap full of gas in with the spark plug and that time after trying to start it for a bit i got a back fire out the airbox which i have with the filter off. any other ideas i could try...tks