139
FUEL SYSTEM
COMPONENTS
7
The EMM is programmed to compensate for vari-
ations in fuel flow. Each injector and its location on
the outboard is identified by the EMM. DO NOT
install an injector without updating the compensa-
tion software.
Each service injector includes its fuel flow infor-
mation on a 3.5 in. floppy disk. This software
allows the EMM to be reprogrammed for this injec-
tor’s unique fuel flow characteristics.
Fuel injectors MUST NOT be moved
from one cylinder to another. EMM program-
ming is associated with the cylinder location
of each injector. Installing an injector on the
wrong cylinder can result in powerhead fail-
ure.
Injector Fuel Supply
Fuel is supplied to the injectors by the fuel circula-
tion pump and the fuel supply manifold.
Each injector has internal fuel passages. These
passages are designed to:
• Provide fuel to the injector's injection chamber
• Route fuel through the injector housing to cool
the injector coil and armature
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