The dry weight for a 1993 model, 20 hp Mariner outboard is 112 lbs.
The dry weight of a 1985 model, 100 hp Mariner outboard is 312 lbs.
About 17kg.
The weight for a Mariner 100 hp would be the same as the Mercury at 315 lbs.
internal tank model is 48#
95 hp
The approximate weight of a 90hp Chrysler outboard motor is 280 pounds.
398lbs +prop and oil,gear lube 446lbs
The dry weight of a 1984 model, 40hp Yamaha longshaft w/ electric start, is 165 lbs.
An 75 hp Mariner outboard, serial number OB346777, would be a 1988 year model, with a dry weight of 265 lbs.
I have a Johnson 85 hp model no 85ESL75E 1975 longshaft low profile powershift II and it weighs 180kg apparently
About 135 pounds.