Thanks jim! My first thought is the Air inlet hose was too small because the motor would act like it would start starving after a while. So I replaced the small hose with a bigger hose so that would not be the problem. It did not help the situation.
Stevie, Did you run your engine for over 30 mins'? Mine would run about that length of time, what I found is the fuel would become Unusable after you extracted the flammable vapor from it. you'de be left with an unusable tented liquid. It promised nothing and proved worse.
Once you replace with new fuel, once that temperature is meet, the idle speed is suffered with the air inlet completely shut off no matter the mix or quality of the fuel.
If you shake the fuel container it seems to idle the engine up a good bit. Shaking disturbs it more than Bubbling up threw it so it is good to keep the fuel on some sorta shaker. Near then end If I stopped shaking the fuel container it would die, give it a shake and it idle back up. I was very displeased with the results. Droping an Rod in the Intake Tube would only speed up the velocity of the fuel entering the intake and reduce the time the fuel was exposed to the reaction chamber, you could control this exposure rate by varying the size of the rod. Some guys just use a Cooling coil, that defeats the purpose of the system as shown. But if it proves true then it is possible the reaction chamber is becomming to hot and the fuel is to hot to burn so its smothering like a flame with a glas jar over it.
even if the correct temp is meet with this system, once the vapors are extracted from the gas whats left does not combust, its a useless liquid you end up with in the end. Someone prove me wrong?