Mine, with electric start and manual tilt, weights 160lbs.
538 lbs.
170kg
247 lb
429.7 pounds.
A 150hp Mercury outboard weighs from 390-424 lbs. depending on the model. The Optimax 150 is heavier at 443- 455 bs.
The weight of the 90 hp Yamaha, as well as other brands, varies with year model. On average the Yamaha 90 weighs in at 256 lbs.
Assuming you're asking about Yamaha outboard engines, a 2 stroke Yamaha 40 weighs about 190 pounds while a 4 stroke Yamaha 40 weighs about 220 pounds.
The dry weight of a 1984 model, 40hp Yamaha longshaft w/ electric start, is 165 lbs.
Depending on the model, the 40 hp Evinrude for 1988 has a listed dry weight of 180 - 219 lbs.
The dry weight of a 1988 model 25hp Mercury outboard is listed as 105 - 112 lbs depending on the model.
a 2009 Yamaha warrior weighs in at 396lbs
19 kg