When attempting to start these, and after flipping the prop till your arm falls off and not even a "pop" get mad and go to bed! Next day call friend and have him come help. He comes early in the morning, we gasser up again just to be sure, pulls on the choke, he turned the prop back wards and let'r go, three times and it's running. Didn't know about the spring thing! dah. Later after friend is gone I decide to try this myself, one should always wear a glove, it will be a while before I try this again!!!!