My F3 has been sitting for the winter. It initially started up after a quick battery charge and idled... but when I turned the throttle at all it would shut off.. After that it would want to start but just couldn't quite fire up. A day later I again had it started and idleing for a few minutes and then it shut off. I did change all the spark plugs as they needed to be changed anyways but it did not help the problem. Any suggestions? (there is old gas in it from about 4 months ago... but I don't think thats the total problem, however I will be draining the old gas and putting new gas in tonight).

 

That just may be your solution right there...

 

I did put new gas in and it did not make a difference.... any other suggestions?

 

Did you drain the carb bowls and then put new gas? If not, there's still plenty of old gas in the pump, fuel filter, hoses, and carb bowls that needs to be pushed and drained out!