I have always use 80 90 gear lube for lower units is that bad? I just filled my mercury 1980 50 hp serial 5796423 with it and filled how I should from the bottom and it didn't take much. how much I thought 13 ozs??
Hello, I have a 1980 Mercury 50 hp outboard I just purchased I replaced the water pump and impeller. I noticed that at the top of the shaft while I was putting it back in there were two black female splined sleeves laying in the housing. I know they go on the end of the shaft but they are both...
