I just got a 1966 Starcraft Sea Scamp with a 7.5 hp Ted Williams motor. The motor has spark and compression but doesn't start. I have a couple questions about it. I see the motor is air cooled. Is it okay to run the motor out of water? Does the drive section need water in some way to cool it? Is the motor a 2 stroke that needs oil and gas mixed? Lastly how does the shift mechanism work? When I pull the rope the propeller spins.