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2023 OWNER’S MANUAL
Check the Propeller Shaf Coupling
Alignment
This function is critical to avoiding unnecessary wear and potential
damage to the engine as well as the propeller and propeller shaft.
Because it is a complex and exacting part of maintenance, this
should be performed only by your authorized MasterCraft dealer
as part of your annual maintenance.
prevent burns to your skin. Perform this task before starting
the boat.
1. Ensure the engine is OFF and disconnect the engine safety starting
switch. Be sure that the throttle/ shift control lever is in neutral.
The engine must be cool.
2. Open the engine box and locate the four (4) motor mounts.
3. Check the tightness of the mounting hardware and adjustment
lock-nuts. Securely tighten any loose hardware.
Inspect the Exhaust Flaps for Damage
1. Ensure the engine is OFF and disconnect the engine safety starting
switch. Be sure that the throttle/shift control lever is in neutral.
2. Inspect the rubber exhaust flap for signs of deterioration. Take
the boat to an authorized MasterCraft dealer to replace the flap if
necessary.
Lubricate Steering System
For cable systems only (both standard steering and DockStar
Handling System); hydraulic steering maintenance must be
completed by an authorized MasterCraft dealer only.
Because this process should be completed while all movable
components of the drive train are NOT in motion, MasterCraft
recommends lubrication be done while the boat is out of the water.
The process below is for all MasterCraft boat models. Additional
steps listed after are required for ProStar rudders.
1. Ensure the engine is OFF and disconnect the engine safety stop
switch. Be sure that the throttle/shift control lever is in neutral. The
engine must be cool.
2. Remove the access panel in the rear trunk compartment.
3. Turn the steering wheel so that the maximum amount of steering
cable is seen (see photo to the right, notice that the engine has been
removed, this is not necessary for lubrication).
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