Re: When did Mercury start rating motors at the prop?
The '86 90hp Merc was a tower of power 6 cylinder. 290 lbs.
The 75hp was a 4 cylinder was 265 lbs.
The 60hp 3 cyl, which I happen to have ('87), is 190 lbs. As mentioned before, it was a 70HP before the change to propshaft hp.
Weight data can be had at nadaguides.com - select boats- select outboard icon and go from there. '79 and later. Don't know about the 'rude.