Something to look out for on these DLE 20s is the spring clip for the throttle shaft coming off. Then the spring pushes the throttle plate againt carb barrel side and distorts the plate. Had this happen twice. The sign was the engine wouldn't idle down. Too much fuel and air leaking through the distorted area. I tried to fix by hammering out the distortions and filing the edges down smooth. But couldn't get it close enough. Still leaks but will idle down slower. Need new carb but every one is "out of stock".