What does EFI mean on a Mercury?
electronic fuel injection
Mercury Marine’s battery-less electronic fuel injection (EFI) system for its FourStroke 25hp and 30hp outboards – means easier starting, smooth running and greater safety. The Magneto Powered EFI system is a breakthrough feature meaning the EFI can operate when the battery is low, flat or even disconnected.
Is a Mercury EFI a 4-stroke?
The Mercury 115 EFI four-stroke outboard is an in-line 4-cylinder that is made from the same 1.7 liter block and powerhead used in the 200-hp Verado.
What year did Mercury 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.
Does Mercury EFI need a battery?
Most EFI systems, said Mercury, require a battery to operate correctly because, during start-up, the engine control unit needs power to read ambient conditions and correctly pressurise the fuel system before the engine begins cranking, which means if the battery is flat or low the system won’t work.
What’s 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.
Do EFI outboards have a choke?
First, when it comes to starting 4 stroke outboards, an EFI engine has the advantage. With no choke involved, it definitely makes starting your engine easier.
What Year Did Mercury start making 4 stroke outboards?
In 1994, Mercury introduced the first 3-liter outboard, the 225 Offshore. In 2004, the Mercury Verado became the world’s first supercharged four-stroke I-6 outboard.
What does DFI mean on Mercury outboard?
Direct Fuel Injection
Old-tech two stroke outboards and new Direct Fuel Injection (DFI) outboard engines are not at all alike.
What does EFI outboard mean?
or Enhanced Fuel Injection
For all those rookie boaters scratching your head confused by the terminology, EFI, also known as Electronic or Enhanced Fuel Injection, is a relatively new marine engine technology that has made the boating experience a lot safer, cheaper, and smoother.
How many hours is too many for a 4 stroke outboard?
Big 4 strokes are good for 5,000 to 6,000 hours.