Hi, a friend have a new spe 26cc that we are breaking in. First day it fired right up and ran just great for a couple of hours(various rpm), next day it started but would die at anthing above idle speed. It just cuts abrubtly when the throttle is advanced. Only thing we changed from day 1 to day 2 was the fuel, as we went from pump gas mixed 4% to aspen twostroke mix topped up with oil to 4%. We have dismantled and cleaned the carb three times so I`m quite confident that is not the problem, the crankhouse seems to be tight, no leaking crankseals. I suspect that it is the ignition unit causing the problems, but how the heck can we be sure it is working properly or not? Is there some history/issues concerning these chinese cdi units that anyone know of??? We have not tried a different plug yet but we will do that tomorrow, I just can`t see how the plug can cause this as the engine fires right up and can idle for as long as two hours, but dies as soon as trottle is advansed(even if it have idled for only a minute) anyone?????