Specifications

STORAGE
Storage or winter lay-up requires special preparation to
prevent damage to the boat. Since winter storage is an
annual event, it presents an excellent opportunity to
perform the annual maintenance at this time.
Without proper preparation, storage for long periods of
time may cause internal parts of the engine and transmis-
sion to rust because of lack of lubrication. Also, if the boat
has been stored in below-freezing temperatures with water
inside the bilge or engine cooling system, including the
heater or shower, this condition could result in major
damage from freezing.
Also, refer to the section regarding oil changes.
Your boat should have an oil change performed
immediately prior to storage to prevent potential
damage to your engine.
The following procedures will help avoid most
potential types of damage for a period not to exceed
five (5) months!
Because of the complexity of preparing your boat
for proper winter storage, as well as the possibility
of extreme damage to the engine if a preparation
error was made during winterization, MasterCraft
recommends that you schedule an appointment
with your local MasterCraft dealer and permit the
dealer to perform the winterization procedures.
To properly winterize your engine, you MUST be able to
bring the engine up to operating temperature. To accom-
plish this, your boat must be in the water or attached to a
water supply using a hose and suitable adapter that will
allow an uninterrupted supply of water to the engine.
GENERAL PREPARATION
Before starting you will need the following supplies:
• Sta-Bil
®
Gasoline Stabilizer
• Six (6) quarts of specified engine oil (see engine oil
change instructions elsewhere in this manual)
• Appropriate oil filter for your engine (see Specifications
elsewhere in the manual or contact your dealer)
• Fuel filter
• Low tack tape
• Four to six ounces of fogging oil
• One (1) can of corrosion protectant and lubricant
• Transmission oil (if needed)
• Multi-purpose grease
AND WINTERIZATION
2006 MasterCraft Owners Manual–Page 17-1
• Short piece of stiff wire such as coat hanger wire
• Pipe thread sealant
• Anti-freeze tester suitable for propylene glycol anti-
freeze (fresh-water cooled engines only)
• Anti-freeze (see elsewhere in this manual for more
details regarding acceptable brands and specifica-
tions–NEVER mix anti-freeze types)
FUEL SYSTEM TREATMENT
Step 1: If the boat will be placed in storage with fuel (no
alcohol in the mix) in the tank, fill the tank with fresh fuel and a
sufficient amount of Sta-Bil
®
gasoline stabilizer to treat the
entire tank. Follow instructions on the container.
Step 2: If the boat will be placed in storage with fuel that
contains alcohol, the fuel tank should be drained as
completely as possible, disposed of properly, and Sta-Bil
®
gasoline stabilizer added to any fuel remaining in the tank.
Follow the directions on the container.
Step 3: Start the engine and operate at idle until the
engine reaches normal operating temperature. (If using a
hose and adapter, adjust the faucet to avoid over-cooling
the engine at low RPM.) Run the engine for at least 15
minutes to ensure that the fuel stabilizer enters the
engine’s fuel system.
Running the engine with the flame arrestor removed
increases the possibility of fire or explosion if the
engine should backfire and gasoline fumes are
present. If the engine is operated without the flame
arrestor secured, extreme care must be taken to ensure
that the engine compartment is well-ventilated and
that no fuel leaks are present.
Step 4: Carefully loosen the flame arrestor and lift it far
enough to insert the tube of the fogging oil can. Spray four
to six (4 to 6) ounces of oil into the throat of the carburetor
or throttle body. Shut off the engine. Re-attach the flame
arrestor and seal with low-tack tape.
Step 5: Perform the annual maintenance as described in
the previous chapter.