Here are two pics to try to show you whats going on - one doesn't have the starter mounted and the other does. The gear is off the starter as I need to turn first before I put it on. The solenoid is a three pole one - I have a four pole as well and I have tried both - doesn't appear to make a...
I'll try to be as quick as possible and clear:
Got a 78 20HP - the starter rope broke so I have been trying to build starter. I had a solenoid and a starter on it - but the starter had no gear. The solenoid only got the starter (without gear) to go when I banged on it so i knew it was busted...