At this point I don't understand how your engine can idle without either an adjustable idle speed screw, or a second governor spring such as the one shown in Figure 98. However that will not be the reason it won't start, so let's disregard it for now.
Does your engine have an automatic choke, a primer system, or a manual choke? All three were available on that model. Please describe your procedure for starting the engine, including how you set the controls.
