The ski starts fine every time but after the engine runs for a while and is shutdown for 10 minutes or so it won't restart, the starter can barly turn the motor over. Then after about 15 minutes or so it will start fine,

Vapor lock???

 

thats what was wrong with mine, i just got it fixed last week. My jetski was scared of the water!. It would start outside of the water, but wouldnt inside the water???

 

The choke was stuck closed on mine what was wrong with yours?

 

check all your wiring