Specifications

Step 3: If the tank was completely empty, see your MasterCraft dealer for assistance immediately as your engine cooling
system needs purging. This function should be completed only by a trained MasterCraft service technician.
Failure to maintain your coolant at the proper level can cause engine
damage. Your warranty will not cover engine damage due to overheating
or any other cause associated with improper coolant levels.
CHECK THE ALTERNATOR BELT FOR LOOSENESS
OR DAMAGE
Because this process should be completed while the engine is cool
and cannot cause burns to your skin, we recommend you do this before
starting your boat.
Step 1: Ensure the engine is OFF and the engine safety switch disconnected.
Be certain that the throttle/shift control lever is in neutral. Open the engine
compartment and locate the alternator belt.
Step 2: Check the alternator belt tension at the top, midway between the
circulating pump pulley and the alternator pulley. The belt should be tight
enough so that it will deflect no more than one-quarter to one-half inch when
pressed with the thumb or finger.
Note: If the belt is too tight, excessive belt and bearing wear can
occur. If the belt is too loose, slippage can occur, resulting in low alterna-
tor output and rapid belt wear.
Step 3: If your engine is not equipped with a belt tensioner, loosen the
alternator mounting hardware and tighten the hardware. Re-check the belt
tension. On engines with serpentine belt systems, however, no change is
necessary. Belt tension is maintained by the automatic belt tensioner.
Step 4: Check the underside of the belt that actually runs in contact
with the pulleys. Look for signs of excessive wear, cuts or weakness
across or in the grooves. If there are any, replace the belt. We recommend contacting your MasterCraft dealer for
service assistance.
INSPECT THE BATTERY CONNECTIONS AND HOLD-DOWNS
Because poor connections or hold-downs can result in erroneous voltmeter
readings, we recommend you do this before starting your boat.
Step 1: Ensure the engine is OFF and the engine safety switch disconnected. Be
certain that the throttle/shift control lever is in neutral. Locate the battery.
Batteries are placed in a variety of locations, depending on the model. Check
under the observer seat or behind the rear seat.
Step 2: Check that the battery post connections are clean and tight. If not:
• Loosen and remove the negative terminal connection first. Be careful not to
touch the positive terminal with the wrench.
• Loosen and remove the positive terminal connection.
• Remove the battery hold-downs and remove the battery from the boat.
• Clean corrosion from the battery posts with a battery terminal cleaner.
Clean the battery with a water-and-baking-soda solution. Use care to
avoid allowing the solution to enter the battery vents. Rinse the battery
with fresh water.
2006 MasterCraft Owners Manual–Page 15-2