fer cryin out loud I fought for the last couple of days trying to get the Enfield to run clean. It would pop and almost spit me over the handlebars. finally after changing everything on the ignition, battery, spark plug, high tension cable, coil, points, condenser and battery. Then I drained the expensive "race gas" and refilled with fresh and after cleaning the carb 4 times got the F'er to run correctly. Now I am fighting the mighty Matchless and dang I am tired of modern fuel. Never had problems like this as a kid. Sucks.