PeeGee

I boat this boat used and hoping I didn't get taken to the cleaners. After I ran the boat for about 1 hour the engine just stopped and wouldn't start. We got towed back and played with it the next day. It seemed like an adjustment knob on the perfect pass was lose so we moved it some and engine started and ran great. Then a week later it all happened again while on the lake. This time we couldn't get it going. We tried to disconnect the Perfect Pass electrical connections and that didn't help. The servo motor was very hot. I cannot even tell which Perfect Pass model I have. Any troubleshooting ideas?