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2023 OWNER’S MANUAL
4. Add one gallon of -50 F RV type nontoxic propylene glycol based
antifreeze to each of the three thru-hull vents. Colder climates may
require this same type of antifreeze with a -100 F
temperature rating.
5. Because the NXT Series uses a dierent style ballast system than X
and XT series models, the antifreeze will stay in the ballast system
during storage rather than being immediately pumped out.
Upon reactivating the boat the first time after storage, run the
ballast system to pump out the antifreeze (the engine must be on
and the boat must be in the water).
The original bridge connector in the ballast system must be
reinstalled if the optional plug-in bags are removed from the
system. Failure to do so will result in any water in the ballast
system evacuating into the storage compartment, potentially
flooding the storage compartments. This could sink the boat,
resulting in serious injury or death.
REACTIVATING THE BOAT AFTER
STORAGE
1. Remove duct tape from exhaust flaps.
2. Fully charge the battery(ies) and install them in the boat, following
all safety precautions associated with changing batteries
Often, batteries that have been stored over winter will require
recharging. Only an authorized battery charger should be used
to charge the battery(ies) in MasterCraft boats. Use only a
three-stage or more battery charger. It is important that the
operator never turn a battery charger immediately to “start,” as
the sudden jolt of voltage may cause damage to the electrical
system, particularly the control modules for the ballast system.
Regardless of the time of year, care should always be used when
charging a battery(ies).
3. Follow all instructions for reactivating the engine and drive train as
detailed in the Ilmor Marine Engine Owner’s Manual.
NOTE: Due to the complex nature of the engine and drive train
reactivation process, MasterCraft recommends having an
authorized MasterCraft or Ilmor dealer perform this function.
4. Ensure that all drain plugs throughout the boat and drive train have
been reinstalled to avoid unwanted water intrusion.
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