motor has external governor on top of flywheel and is a reedvalve motor,it also has a twist throttle Do you think it would probably be a 1957 GE A 3.Leg is purposely built for that particular motor with three bolt mounting and rectangular exhaust port.Do you think Kirby may have also under license outsourced the leg from Canada or had it manufactured here in Australia to tap into the outboard market like victor and Villiers.Any information would be greatly appreciated,thank you.