Have Model 358.797931 (1997) that seems to have a pull starter problem. When I pull rope, it does not seem to turn engine. Rope does recoil. From repair parts diagram it would seem to view the problem I need take both Left and right housing off. Could it be a spring starter dog? I put it away this spring after it did not start after a few years rest. Trying to remember if at first I could not pull rope out easily. Think I might of pulled to hard on a frozen engine? Any suggestions before I put the screw driver to it?