2023 OWNER’S MANUAL
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HIGH SPEED OPERATION
MasterCraft boats are designed to accommodate professional
drivers with advanced operating skills who can perform high-
speed maneuvers and turns on-a-dime. DO NOT attempt to
duplicate or simulate these feats. Paid, professional drivers log
thousands of hours on the water and carefully choreograph every
move. Plans are made in advance in the event the routine must be
aborted. Maneuvers of this nature could cause serious injury or
death, as well as damage to your MasterCraft boat that will not be
covered under warranty.
Boat operators should never attempt to duplicate operational
skills of professional drivers. When such maneuvers fail, it can
result in serious injury or death.
For the best engine performance and longevity, the wide-open-
throttle (WOT) engine operation must be near the top of, but
within, the specified WOT operating range. To adjust the WOT
operating range, select a propeller with the proper diameter and
pitch. The propeller supplied on the boat was chosen for best all-
around performance under average operating conditions.
Load, weather, altitude and boat condition all aect WOT engine
operation. If the boat is used for several dierent applications
such as wakeboarding, bare footing and cruising, it may be
necessary to have two (2) or more propellers of diering size
and pitch to allow the engine to operate in the WOT range for
each application.
Propping the boat should be done after the boat is loaded in the
manner in which it would normally be loaded for each application.
For example, in propping the boat for wakeboarding, fill the ballast
tanks and add the people and gear that normally would be expected
in the boat. Take the boat out and after warm-up, run it at wide-
open-throttle and note the maximum RPM. EFI engines are
equipped with RPM limiters to prevent over-revving. Take note if
the RPM limiter is activated.
If the WOT RPM is higher than the maximum RPM in your engine’s
WOT operating range, the boat is under-propped. Installing a
higher-pitched propeller will reduce the WOT RPMs. An engine
that is over-revving may quickly experience catastrophic damage,
which will not be covered under warranty.
If the WOT RPM is lower than the minimum RPM in your engine’s
WOT operating range, the boat is over-propped. Installing a lower-
pitched propeller will increase WOT RPMs.
An engine that is under-revving is “lugging.” This places a
tremendous load on the pistons, crankshaft and bearings and can
cause detonation, piston seizure and other engine damage, which
will not be covered under warranty.
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