try re gapping your plugs if thier right find someone that can put it in time..... air fuel fire compression ..you got those it should run...just get it in time...not that i know im just saying if its spitting and sputtering the timeing should help aslong as your plugs and wires are good...have you messed with the screws on the front of that carb if so try putting them back where they where....thats all i can think of gl...