EFI & JET-EFI Mercury Mariner
Owner Service Workshop Parts
and maintenance manuals
With the EFI system(Electronic fuel injection)
the fuel mixture is injected into
each cylinder, air entering the cylinder
before it reaches the inlet valve.
EFI engines have low emissions
and do not require fuel priming.
They are also quick to start and use
less fuel and have less loss of
performance. The Mercury EFI Outboard
provide fast and reliable starts,
they are more energy efficient and
have an instantaneous acceleration response.