Last week I thought I had finished my project. The engine was kicking and tilt was working fine. After 1 week I returned to the boat last night to start it and it wouldn't kick over. The battery seems OK. When I lifted the cover off I noticed that the shaft that holds the wheel that lifts up to turn the main flywheel to crank the motor was spinning but it wouldn't lift up to engage the flywheel the way it had previously. So the shaft is spinning but the cog is not and is not lifting up either.Any suggestions? (I apologise if this post contains too many technical engine terms). 