hello! New member. Just picked up this old boat with an outdrive that I can’t find much of any info on. I know how to do one with the two hi &low plugs, but this has a larger OIL FILL plug on the rear of the upper housing, about 3-4” down from the top. I guess u just fill till full to there, but that’s a lot! Also need another lower unit (cracked) or other missing parts. THANKS!
