hair dryer is only usa models because they were emissioned so bad and the emissions causes higher temps which would boil gas and also caused cracked manifolds.
i have recently started to have the same problem except after 15-1 hour, it will fire right up, only to die within 10 feet, then it won't start. never had the problem until the night we rescued treeroots cruiser from napier...did it three times. then, today, it did it while i was up in the mountains. i know at least one of the times, the carb fan (oops...hair dryer) was working. today it wasn't going, but we were also in cold mountain air. we ended up having to pull the fuel filter and dump fuel into the carb about three times (the third time, not emptying the filter, but only half of it), before it would fire. once it fired and was running at a normal rate (solid flow of fuel) it runs like a champ.
i've had the cruiser for six years...this has NEVER happened before thursday night and as the original post, fires right up when cold and if i start it within five minutes or so and runs fine then...it's only if it sits for 15 minutes to about an hour .