PURSUIT S 408 SPORT 2017, Owner'S Manual

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Fuel Systems Section 3
3-5
7. The fuel delivery system will shut off
when the tank is filled to the proper
capacity.
8. Remove the nozzle.
9. Install and tighten fuel cap until it clicks.
10. Check the fuel compartment and below
the deck for fuel odors. If you smell fuel,
DO NOT start engines.
3.5 Fuel System Maintenance
DANGER
!
FIRE / EXPLOSION HAZARD
Fuels are extremely flammable and
highly explosive under certain con-
ditions. DO NOT smoke or allow
open flames or sparks nearby when
inspecting the fuel system.
Frequently check fuel lines and all
system components (filters, primer
bulbs, clamps and connections) for
leaks, damage or deterioration, or if
you suspect damage, replace as nec-
essary. Surface cracking on a hose
indicates wear. Replace it.
Spray the valves, fuel tank gauge sender and
ground connections with a metal protector.
Inspect the fuel fill cap o-ring seals frequently
and lubricate with petroleum jelly or silicone
grease. The o-ring seal prevents water from
entering the fuel system through the fuel fill
cap. If the o-ring is damaged, or you suspect
it is damaged, replace it.
Old, degraded gasoline can affect engine per-
formance and damage the engine and boat
fuel system. Chemical changes occur as gas-
oline ages, reducing octane and can cause
deposits and varnish in the fuel system.
If your boat is not operated enough to require
at least one full tank of fresh fuel a month, a
fuel stabilizer should be added to the gaso -
line to protect the fuel from degrading. Do not
allow the boat to sit unused for an extended
period with the fuel tanks less than 3/4 full.
Changes in temperature and weather condi -
tions can cause condensation in fuel tanks.
Your Pursuit dealer or the engine manufac-
turer can provide additional information on
fuel degrading and fuel stabilizers recom -
mended for your engine.
Improper storage of fuel at marinas, lim-
ited boat usage, etc. can cause the fuel to
become contaminated. Periodically, it may
be necessary to pump accumulating water
and contaminated fuel from the bottom of
the fuel tanks. If the fuel system on your boat
becomes contaminated, contact your dealer
or marina for assistance.
Avoid using fuels with alcohol additives. Alco -
hol blend gasoline will absorb moisture from
the air which can reach such concentrations
that “phase separation” can occur where the
water and alcohol mixture becomes heavy
enough to settle out of the gasoline to the
bottom of the tank. Since the fuel pickup
tubes are near the bottom of the tank, phase
separation can cause the engine to run very
poorly or not at all. Phase separation is more
severe with methyl alcohol and will increase
as the alcohol content increases. Water or
a jelly like substance in the fuel filters is an
indication of phase separation from the use
of alcohol blended fuels.
Diesel engine operation requires a good sup-
ply of clean, water-free diesel fuel. Algae can
grow in the accumulated water in the diesel
fuel tank. This will normally occur in warm
climates. Adding a high quality diesel fuel
additive containing an algaecide periodically
may be required to control algae in your die-
sel system, depending on your boating area.
Contact your Pursuit Dealer or engine man-
ufacturer for additional information regarding
fuels and additives.