Chosen Solution
quits while running turn key to start starts again and runs for a while every time it quits staarts again by turning key to start position. Is it the Key start switch?
I would say dirty fuel tank or line is pinched or partial blocked. The float on the carb may be sticking. Dirty fuel filter. Long shot but the ignition switch may be faulty. Do you have to choke it for it to start every time? The hi speed jet could be plugged. Good luck.
