Evinrude Gremlin

[Capt Terry]

Don't know if this happens on boats, but I once had a '68 Corvette that would occasionally die, coast to the side of the road, and then immediately restart. Then one day as I turned the key, it started until I let go of the key, had to keep some torque on the key to keep it running. With a paper towel and WD40 and pushing the key in & out, I washed a lot of debris out of the switch. Probably had the car 10-15 years more with no ignition switch problems thereafter. Probably not your issue, but a quick thing to try.