ORIGINAL: netdudeuk
ORIGINAL: da Rock
This can be a lot of things.
Find an experienced flyer and ask his assistance.
But aerowoof has cut to the chase with the first and best test.
You might not be filling the tank.
The pickup line may be sucking itself shut against the tank wall.
The pickup line may be sucking air. Hole in it?
The pickup line may actually be plugged to the fill overflow pipe in the tank that goes to the top inside of the tank.
You might not have the needle valve open enough and the engine leans out too much and dies.
Same with needle valve open too much. If the fuel delivery/pickup line is empty, probably not either of these last two.
The silencer being flooded suggests the fuel lines are incorrectly connected.
If it is the overflow line, pull it from the silencer when you fill the tank.
How many lines and what are they?
How long does it take to fill the tank? How big is it?
Three lines into the tank. We used the filler line to fill it and then bunged it once complete. We used an electric pump and filled it until the fuel sprayed out of the removed carb feed pipe. Just typing this makes me feel that was the wrong thing to do as that carb feed pipe is on the clunk so its surely the FIRST pipe to see fuel and not the last ! If you have filler, pressure and clunk lines, what do u plug / unplug to fuel up. I didnt do i but I know that the owner bent one internal pipe up, one down and had a straight one for the clunk
Thanks
Fill the tank using the line you have been using but disconnect the line going to the muffler and fill until you see fuel coming from it. You are filling the muffler with fuel the way you are doing it now. The fuel will take the path of least resistance and more will try to go through the muffler line than the carb.