Re: Outboard start with Electric motor?
It doesn't take much to start a 4 horse, but I understand how a sore shoulder can make it impossible.
I'd ditch the electric drill idea.
If it was me, I'd look for a way to snap a longer pull rope on it when I wanted to start it. Try a loop in the pull rope that you could put around your foot, so if you face away from the motor, you can kick start it by pushing your foot away. I don't know how your motor is positioned on your boat. With luck, you'd get a pretty straight run with the rope and not have to use any blocks to direct the rope where you need it.
I don't think you're going to be able to find an electric start motor in that horsepower range. You could get a Torqueedo electric outboard, but they're big bucks.