Sounds like a fuel problem - have you tried using partial choke? At least, this might verify that you just have a fuel problem. The 4-stroke is not as temporemental as the 2-stroke, but worth checking a few simple things : Is there an obstruction in the fuel supply ? Is the fuel tank supposed to be vented - if so, is the vent blocked ? Is there some dirt in the fuel, leading to a blocked jet in the carburetor ? - if so, drain/empty the carburetor, clean sediment & ensure all jets are clear and refill whole system with clean fresh fuel : If the carburetor or any part of it is loose, there might well be an Induction air-leak ( which could impair the engine's intake of fuel ) : And (of course ) - Is the spark-plug badly "gapped" or fouled ? Try to isolate and eradicate in a methodical way, good luck !
Answers & Comments
Sounds like a fuel problem - have you tried using partial choke? At least, this might verify that you just have a fuel problem. The 4-stroke is not as temporemental as the 2-stroke, but worth checking a few simple things : Is there an obstruction in the fuel supply ? Is the fuel tank supposed to be vented - if so, is the vent blocked ? Is there some dirt in the fuel, leading to a blocked jet in the carburetor ? - if so, drain/empty the carburetor, clean sediment & ensure all jets are clear and refill whole system with clean fresh fuel : If the carburetor or any part of it is loose, there might well be an Induction air-leak ( which could impair the engine's intake of fuel ) : And (of course ) - Is the spark-plug badly "gapped" or fouled ? Try to isolate and eradicate in a methodical way, good luck !