I have a ASP108 that I can't keep from flooding. I even screwed the HSN in to about 3/4 turn and when I hit it with the elect starter fuel starts coming out the muffler. If I tip the plane up, fuel will run out of the muffler. Needless to say I can't get it started. WOW!! any suggestions I will be happy to try.

Gene,
 Check your fuel lines. Usually when this happens it's because you have the vent line hooked up to the fuel intake on the carb and the fuel line hooked up to the pressue tap on the muffler. I'm willing to bet that your fuel lines are hooked up backwards.

Hope this helps

Ken

glow plug dead? glow ignitor dead? lsn way to far out (rich)? what Ken said, carb not open enough? how cold is it outside?...new engines have a harder time in the cold

Hummmm! none of the above. the engine was in the house mounted on a plane. New engine. Took it out on the back deck to try and get a tankful run through it. It would get so much fuel that it would hydrolock. I was using a 3 line system from the fuel tank. I have now changed that to a two line and will put it on the bench tomorrow.

Im with Ken. Lines are hooked up backwards

Is this an inverted mount?

correct on the inverted mount. Lines were correct. Think this is a problem with the carb. However John, I also tried starting it with the plane turned over so the engine was upright.

If your tank relationship to the spray bar is to high it is going to to syphon and flood every time the airplane is right side up. It will happen everytime someone carries the airplane with the nose down and it will happen in the hot sun soon after filling the tank as the fuel expands. Starting an airplane upside down will not fix that.

The symtoms you described are all the classics for a bad inverted installation. The need to start the airplane upside down will soon get downright old.

Lower the fuel tank or rotate the engine to 90 degree side mount.

John

Thanks John, with the cowl I cannot change the engine orientation so I will look at the level of the tank.

I'm a bit late on this reply but have to say that you must have tank too high therefore are syphoning. Tank should never be located so that center of tank is higher than center of spray bar in carb. Regardless of upright or inverted engine. Is ok to have center of tank lower than spray bar by as much as 1/2 but never higher. Pressure line from muffler provides fuel to engine even when tank is lower

Thanks TedMo. I did lower the tank and it seems to be OK now. Also put new plumbing in the tank.