hello, i just bought a project jet ski, its a 1998 tigershark ts640. the listing description said it just needs a starter. When I went to buy it he show me how it will crank, but after about a second the starter disengages and it just spins freely. When I took the starter off and stuff, i cant spin the starter by hand but when I stick my finger on the whole where the starter goes I am able to spin it freely and it isnt engaging anything. I first thought my problem was the starter bendix but it is not locked up and seems to be functioning properly. I ordered a new starter but I also read something about the starter solenoid actually being the reason the flywheel is not spinning. So just to recap, essentially, when I go to crank over the engine, it engages for about one second and then just spins freely. Anything will help.