Yes, the 6 volts starter works GREAT on on 12 volts. It spins 50% faster so a well tuned outboard will start instantly. Keep in mind in overheats twice as fast so if you are using the electric starter because it’s not in good enough shape to hand crank, know you will soon be buying a 12 volt starter to complete your conversion. It is good practice to be sure that everything is properly set and adjusted before you start cranking. . . 😀
