Ford 8N Stumbling, shutting down

I've heard that it may be the fuel line getting too hot and vaporizing the fuel...I really need help as the grass is getting taller!

Thanks.

1) runs for about 1-min, stutters and quits, restarts in about 5-mins. does that sound like your problem??? BAD CONDENSER
2) runs for about 5-mins, stutters and quits; restarts in about 10-mins. Clogged fuel filters (3)
NOT yer stated problem, but could be.
3) runs for about 15-mins, stutters and quits, restarts in about 15-mins, bad ignition switch
NOT yer stated problem, but could be.
4) runs for about 1-hr, stutters and quits, restarts in about 4-hrs or overnite, bad ignition coil.
NOT yer stated problem.

While the metal fuel line is exposed to radiant exhaust manifold heat, it takes MUCH LONGER TIME to "vapor-lock" a gravity fed fuel line than your stated runtime problems. Iff'n you think thats your problem, wrapp some aluminum foil around the line. It don't take much to "insulate" radiant heat.

Me? I think yer problem is CARB ICING. This is a common springtime issue of external air moisture and temperature. I'd wrap some aluminum foil around carb PIPE and EXHAUST manifold to pre-heat the incoming moisture laden air so the heat-robbing effect of the carb venturi doesn't ice yer carb internals and clogg yer carb jets with invisible ICE.

Carb ICING is common problem with lite-aircraft engines and they actually have a lever called "CARB-HEAT" that the pilot pulls on approach when the engine is on idle (max venturi vacuum) and succeptable to ICING just when they need power to do a "GO-AROUND"..... ...Dell

It's going to be nice this weekend, come on over

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THANKS!