evening all,ive recently purchased a working mariner 40 el serial 6e9l 418610,it does have a few problems like water in gear box,thats ok i got it to pull apart to learn about motors to go along with a course im doing,the thing is that i want to start the motor up but dont have a wiring harness or throttle box/key start,it cant be pull started so what to do ?either convert to pull start, or can i start it just by runing form battery and if so how?thanks for your help