Plumbing is fine. I did buy this engine from a gentleman. He told me he ran 2 tanks of fuel through it. Funny the only thing that looks used is the spark plug. I guess I will call scott tomorrow and see what is up. This isn't my first gas engine, but I'm no expert with them either. I know something isn't right
Al
ORIGINAL: aerobob
Make sure you are plumbed like THIS picture. You cannot blow through a gas inlet line. Completely different than glow. You would not get a bad carb from him, as he runs everything in place.
Check all your plumbing against this picture.