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Headquarters A Mercury 50 HP outboard motor circa 1980 Six cylinder two-stroke engine in 1984. Mercury Marine is a marine engine division ... 250 horsepower Mercury ...
Mercury Marine, Mercury Racing, Tohatsu, Yamaha Marine, Nissan and Evinrude each developed computer-controlled direct-injected two-stroke engines. Each brand boasts a different method of DI. Fuel economy on both direct-injected and four-stroke outboards measures from a 10 percent to 80 percent improvement compared with conventional two-strokes ...
The 250 was a stroked 200, made by increasing the stroke from 3.126 to 3.91 in (79.4 to 99.3 mm). Output was 155 hp (116 kW) in the Mustang, and the 250 became the base engine in 1971. The Ford Granada and Mercury Monarch offered the 250 inline-six for the 1975–1980 model years, when it was replaced by the 200 inline-six.
Four-stroke cycle used in gasoline/petrol engines: intake (1), compression (2), power (3), and exhaust (4). The right blue side is the intake port and the left brown side is the exhaust port. The cylinder wall is a thin sleeve surrounding the piston head which creates a space for the combustion of fuel and the genesis of mechanical energy.
Mercury Marine, which sells its engines under the Mercruiser brand, developed the 4.5L V6 Mercruiser engine, producing 200 HP or 250 HP. It was based on the 4.3 L (262 cu in) architecture using similar dimensions, except that it has a stroke length of 3.6 inches.
Evinrude produced two-stroke direct-injected engines ranging from 25 hp (19 kW) to a 3.6L V8 250HP & 300 HP in 1985 and change to 4.0L V8 250 HP & 300 HP in 1986 onward to the end of the production of the V8 configuration.