2017 OWNERS MANUAL / 376
STORAGE &
WINTERIZATION
winterization of the engine, transmission and components of the
drive train. The following procedures will help avoid most potential
types of damage during storage for a period not to exceed five (5)
months.
Winterization is a complex process that may result in damage to
the engine, drive train and other components if improperly per-
formed. MasterCraft recommends winterization by an authorized
MasterCraft dealer.
GENERAL PREPARATION
Before starting you will need the following supplies:
• Sta-Bil® Gasoline Stabilizer
• Fuel filter
• Low tack tape
FUEL SYSTEM TREATMENT
This preparation needs to be done prior to removing water from the
engine, if that will be part of the process.
Boats that are going to be stored for extended periods (more than
two [2] weeks) or winterized should have the fuel system treated
with stabilizer. Even TOP TIER gasolines will experience some sepa-
ration and settling during these periods. Of considerable concern is
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 annual maintenance.
Check with an authorized MasterCraft dealer’s service department
regarding your boat’s needs to determine if this is an appropriate
time for annual service.
Without proper preparation, storage for long periods of time (at any
time of the year) may cause harm to various components of the
boat and drive train. If the boat has been stored in below-freezing
temperatures with water inside the bilge or engine cooling system
it may result in major freezing damage to any of the following: the
heater, shower, ballast tanks, wash down tanks, coolers, bilge and
ballast pumps; or any container or area in which water has been
located. This type of damage is not covered under warranty.
Refer to the Ilmor Engine Owner’s Manual, included in the New
Owner Information Package for guidance regarding the storage and
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