I rebuilt the carb. That didn't fix the problem. Replace the fuel pump relay. Not fixed. New coil. Not fixed. I have replace the electronic ignition mounted on the finder well. That might have don't it. Not sure I have to drive some more. Were was the inertia switch. My coach says their is one, but I haven't found it? I'll repost if the electronic ignition seems to do the trick. I used a napa ignition part.