I have a 1973 Johnson 40hp. Super Sea-Horse out board motor, Model # RD-22 Serial # 2125395 I'm selling this motor and I need a ghetto way to start it for the buyers.I have it in a 55gal. drum,a 12V car battery,a ign. switch for a car,and 4 wires comming from the motor..The ign. switch has a...