Quicksilver 875SD Owner's Manual page 30

Quicksilver 875SD — System & Component Overview and Operation
Fuel Tank
Your boat is equipped with a crosslink polyethylene fuel tank with a capacity of 450 liters. As a
precaution, all of the capacity may not be useable due to trim and loading conditions, so consider
keeping at a minimum 25% reserve fuel in the tank.
Fuel tanks with levels less than 25% capacity can cause engine stalling problems due to fuel starvation
or by allowing sediment and dirt to enter the fuel supply lines. Keep the tank full and monitor the fuel
level often to prevent this from happening.
Fuel Distribution
Fuel is delivered from the tank to the engine through the anti-siphon valve and the fuel line. The anti-
siphon valve is a safety feature designed to prevent fuel from siphoning out of the tank if the fuel line
was ever cut or broken below the level of the fuel in the tank. If the line ever broke, some fuel would
leak out from the line, however, the anti-siphon valve prevents the entire contents of the tank to
siphon into the boat.
NEVER REMOVE OR MODIFY THE ANTI-SIPHON VALVE FROM THE FUEL TANK.
Ethanol—Blended Fuels
Ethanol is an oxygenated hydrocarbon compound that has a high octane rating and therefore is useful
in increasing the octane level of unleaded gasoline. The fuel system components of your Mercury
engine(s) have been tested to perform with the maximum level of ethanol blended gasoline (10%
ethanol), currently allowed by the EPA in the United States.
Special precautions should be considered with the use of fuel containing ethanol in your system. Fuels
with ethanol can attack some fuel-system components, such as tanks and lines, if they are not made
from acceptable ethanol-compatible materials. This can lead to operational problems or safety issues
such as clogged filters, leaks, or engine damage.
Your boat was manufactured, and shipped from the factory with ethanol compatible materials. Before
introducing petrol with ethanol into your fuel tank, ask your dealer if any components have been
added or replaced that are not recommended by Quicksilver®, Mercury or may not be ethanol-
compatible.
Filling The Tank
It is best to maintain a full tank of fuel when the engine is not in use. This will reduce the air flow in
and out of the tank due to changes in temperature as well as limiting exposure of ethanol in the fuel
to humidity and condensation.
When filling the tank, do not attempt to top off the tank. When the nozzle shuts off, the tank is full,
and continuing to fill past the fuel fill shutoff will cause the system to spit fuel back.
Petrol vapors can explode. Never smoke while handling or
Do not store any equipment containing petrol (outboard
filling up the petrol tank. Leaking fuel is a fire and explosion
engines, portable petrol tanks, etc.) in any cockpit storage
hazard. Inspect the fuel system annually to make sure that
areas. These compartments were not designed to store
there are no leaks and corrosion in the system.
petrol and do not have adequate ventilation.
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