In Reply to: 621 carb posted by Doug on July 05, 2020 at 11:12:43:
Have you by any chance replaced the sediment bulb assembly? When I ordered one for my 860 the distributor listed one for 860/861. Wrong! The hole in the hollow bolt and the corresponding hole in the sediment bulb were on opposite sides. Small amount of gas would seep across and allow it to start and run a short time. When it stopped with a full tank of gas I KNEW something was wrong!