I need carb help. The gas isn't getting into the cylinders. The motor has a built in tank on top, <br />the gasline is free, getting into the carb, but it isn't getting into the cylinders. I have rebuilt the carb, cleaned everything. There is no gas getting from the carb to the cylinders. I don't believe there is a fuel pump. It is gravity fed into the carburaetor. Please HELP! What could it be? It is turning over and will run for a few seconds if I pour gas into the cylinders/carb. Sparkplugs are dry. Any suggestions? <br />Thanks, <br />Dave 