What does EFI mean on Mercury outboard?

What does EFI mean on Mercury outboard?

Electronic Fuel Injection (EFI)

When did Mercury outboards go EFI?

Mercury delivered the first recreational electronic fuel injection in 1987 in its V-6 220 XRi. EFI also ushered in the first electronic-control modules — essentially a computer brain — to outboards. In 1996, Mercury continued its two-stroke evolution with the direct-injection OptiMax.

What does 4 stroke EFI mean?

electronic fuel-injected
When choosing 4 stroke outboards – depending on the horsepower range you need for your craft – one of the decisions you’ll need to make is whether you want an electronic fuel-injected (EFI) engine or a standard, carbureted 4 stroke.

How many hours will a Mercury 4 stroke outboard last?

With the proper care and cleaning, Mercury outboard motors could offer you over 2,000 or even 3,000 hours of use.

Which is better EFI or DFI?

Direct Fuel Injection (DFI) DFI is even more efficient that EFI, resulting in more power, less waste and cleaner exhaust gases. DFI is relatively new technology but it is beginning to show up in more vehicles as the system evolves and comes down in cost.

Is 4 stroke fuel injected?

The stroke is the up or down movement of the piston in the cylinder between the top and the bottom positions. One revolution of the crankshaft equals two strokes. In a four-stroke engine, each cylinder “fires” on every second revolution of the crankshaft. Four-stroke gasoline direct-injected engine animation.

What Year Did Mercury start making 4 stroke outboard motors?

1995
In 1995, Mercury and Mariner introduced their first four-stroke outboards, in 9.9hp and 50hp configurations. The engines are noted for their smooth, quiet operation, fuel efficiency, low maintenance and reduced… More emissions.

What is the difference between EFI and DFI?

The systems are essentially identical but instead of pumping gas into the air before it goes into the engine as EFI does, DFI systems pump a very precise amount of fuel directly into the combustion chamber inside the engine where it then mixes with air just before being set alight by the spark plug.

Are Mercury 4 strokes reliable?

Fortunately, the 2 and 4 stroke motors in today’s market are very dependable. They’re built to last and power any adventure.

What does DFI stand for engine?

Ducted Fuel Injection (DFI) for Heavy-Duty Engines.

What is DFI fuel injection?

DFI, as the name suggest, injects the petrol straight into the combustion chamber, leaving pure air to be fed through the intake manifold. Injecting the fuel straight into the combustion chamber allows the DFI system to engage multiple injector pulses during a single combustion phase.

What does EFI mean on a Mercury fourstroke?

Battery-free Electronic Fuel Injection (EFI) on the Mercury 25 FourStroke delivers consistently easy starting, crisp throttle response, increased fuel economy and outstanding overall performance. Mercury 15 and 20hp FourStroke outboards come standard with a three-position choke, eliminating the need for a primer button.

How much horsepower does a Mercury 25 fourstroke have?

25 hp Dependable starts and performance. Battery-free Electronic Fuel Injection (EFI) on the Mercury 25 FourStroke delivers consistently easy starting, crisp throttle response, increased fuel economy and outstanding overall performance.

Why buy a fourstroke outboard?

Mercury 15 and 20hp FourStroke outboards come standard with a three-position choke, eliminating the need for a primer button. Starting is easier and warm-ups are faster! Electrical Support. A high-output alternator keeps batteries charged and fishing electronics humming. Great acceleration / more torque.