...This motor has been sitting for some time. We just came across it the other day. I could get her to start up and run for a few minutes at first... no prob. Then it just putters out when i try to throttle up. It keeps stalling everytime i give it gas. I realized when i got home that i hadnt vented the gas in the can with the vent screw (75% of the fuel in the can, I had purchased that day). Do you think this is my problem or should i investigate the carburetor or something else? Thanks in advance.