Fuel Additives; Avoiding Fuel Flow Restriction; Quick Disconnect Fuel Hose Fitting - Mercury 75 Pro XS FourStroke Operation Maintenance Installation Warranty Manual

Fuel leakage is a fire or explosion hazard, which can cause serious injury or
death. Periodically inspect all fuel system components for leaks, softening,
hardening, swelling, or corrosion, particularly after storage. Any sign of
leakage or deterioration requires replacement before further engine
operation.
IMPORTANT: If you use gasoline that contains or might contain alcohol, you
must increase the frequency of inspection for leaks and abnormalities.
IMPORTANT: When operating a Mercury Marine engine on gasoline containing
alcohol, storage of gasoline in the fuel tank for long periods should be avoided.
Long periods of storage, common to boats, create unique problems. In cars,
alcohol‑blend fuels normally are consumed before they can absorb enough
moisture to cause trouble, but boats often sit idle long enough for phase
separation to take place. In addition, internal corrosion may take place during
storage if alcohol has washed protective oil films from internal components.

Fuel Additives

To minimize carbon deposit buildup in the engine, it is recommended to add
Mercury or Quicksilver Quickstor fuel stabilizer additive to the engine's fuel at
each tank fill throughout the boating season. Use additive as directed on
container.

Avoiding Fuel Flow Restriction

IMPORTANT: Adding components to the fuel supply system (filters, valves,
fittings, etc.) may restrict the fuel flow. This may cause engine stalling at low
speed, and/or a lean fuel condition at high RPM that could cause engine
damage.

Quick Disconnect Fuel Hose Fitting

Fuel is flammable and explosive. Ensure that the key switch is off and the
lanyard is positioned so that the engine cannot start. Do not smoke or allow
sources of spark or open flame in the area while servicing. Keep the work
area well ventilated and avoid prolonged exposure to vapors. Always check
for leaks before attempting to start the engine, and wipe up any spilled fuel
immediately.
FUEL AND OIL
WARNING
!
WARNING
!
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