The dry weight of a 1984 model Mercury outboard is 186 lbs.
A Mercury outboard motor weighs just over 200 pounds depending on the model number.
2900 euro
A 50hp Mercury outboard, serial number 5951056 is a 1982 year model.
1976
The value of a 50 hp Mercury, or any other outboard, is largely dependant on the age of the engine.
The 50 hp Mercury outboard requires a 50:1 ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
Any place that sells batteries can tell you the correct size to buy.
The dry weight of a 50 hp Yamaha outboard of the 2 stroke variety is 158 - 187 lbs, depending on the particular model.
If your engine is a 4 cylinder model, it is a 1985. If it is a 3 cylinder model, it is a 1986.
A 50hp Mercury outboard, requires a 50:1 fuel to 2 cycle oil ratio, roughly one pint of 2 cycle oil, to six gallons of fuel.
It's your switchbox, I just did this on my 75hp 4cylinder.