ORIGINAL: PilotFighter
If the tank isn't absolutely cleaned out after assembly, little flakes of brass can travel to and jam in the spray bar. Have you tried blowing it out ? Sometimes old fuel will just gum up the spray bar or carb fuel inlet.
[&:] yes matter of fact I ran a small wire music wire though the Idle spray bar at the field when it happened, I blew through it ,I sprayed wd 40 thrugh it and its not clogged