Hi I have a Snapper riding mower model SR 930, And the last time I useed it the link holding the deck on broke and the mower stopped, think the blade might have hit the ground. When i tried to restart it the pull start would not come out, so I removed it and the flywheel was stuck, after moving ti back and forth it freed up, so i reinstalled the pull start cover, but when i pull it to start it feels like it has no resistance on it. the flywheel is turning but it wont start. is the engine shot or when the deck fell did it mess up the flywheel. any help would be apperciated. its a 9hp engine. if i need a new engine would a 5.5 hp predator model from harbor frieght work on it. Thanks in advance Tim