ORIGINAL: JoeAirPort
My Moki glows have done that too, you're better off letting them cool off before restarting. They don't like to start when they are already hot (fuel evaporates in cylinder or crankcase?). But I never usually have a problem since I rarely run back to back flights.
I fly by myself at my own private strip quite a bit
so the time line is very often land..........sit for 5 minutes.........then go back up. Most guys don't have this luxury.
Not much of a problem when it's like 50 degrees out, but during the summer months when it's 90+, that's when I notice it the most.....
I'm sure the engine builds up heat in the cowl after landing which is the main source of the problem...