Pro-Line Boats 2012 21 CC, Owner'S Manual

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Tachometer - To ensure the tach is working properly, simply turn the ignition key on and start the engine.  While the 
engine is idling, the tach should be reading in the proper RPM range recommended for the engine.  Your engine manual 
will indicate the appropriate RPM range.  When you are running at wide-open throttle, the tach should read near the top 
end of the recommended RPM range. 
 
If the RPM gauge is reading correctly and the engine throttle settings are correct, the tachometer is operating properly.  If 
the tachometer is not reading correctly, refer to the manual provided by the manufacturer of the gauge (included in your 
owner’s package). 
 
Speedometer (Optional) - To ensure that the speedometer (Speedo) is working properly, get the boat on a planing speed 
and check to see if the gauge is reading at the approximate running speed at which the boat is traveling. 
 

Note:  The speed-reading on the Speedo may vary a few mph from the actual speed that the boat is 
traveling.  Either a GPS or a radar gun can check the running speed. 

Sea Water System

Baitwell 

The baitwell tub is located in the port 
aft corner of the cockpit.  The baitwell 
switch at the helm controls the 
baitwell pump. 
 
The baitwell pump and the seacock 
are mounted in the bilge.  Both are 
easily accessed via the aft bilge 
hatch

. 

Raw water for the baitwell tub comes 
through the seacock, to the pump and 
then to the baitwell tub. 

Baitwell pump is located 

 in the aft bilge area 

Seacock is shown in the closed position 

 
Before turning the pump on from the helm, check to be sure that the seacock is open.  The seacock is wide open when 
the yellow seacock lever is vertical.  When the yellow seacock lever is horizontal, the seacock is closed.  The seacock 
should remain closed when the pump is not in use. 
 

Note:  The round filter attached to the side of the pump should be removed and cleaned often with clean 
running water. 

 
To operate the baitwell system:  Locate the baitwell switch on 
the console and press the switch to the forward position to turn 
on the pump.  When the baitwell pump is operating, go to the 
baitwell tub, open the baitwell lid and visually check to see if 
water is pumping into the tub through the aerator fitting.  If water 
is not entering the baitwell tub, the aerator fitting may not be 
open.  See the photos to the right to make sure that the lever on 
the aerator fitting is in the open position.  To turn the baitwell 
pump off, press the baitwell switch to the aft position.  You 
should always turn the baitwell switch off at the helm if the pump 
is not going to be used soon.

Lever on the aerator fitting is 

closed 

Lever on the aerator fitting 

is open 

 
If you find it necessary to run the baitwell pump while you are underway, you may be forcing more water than necessary 
up through the seacock.  In this instance, adjust the seacock lever to a 45 degree angle so that the seacock is only 
halfway open.  The seacock lever may require additional adjustments to find a setting that works best for you.  Even when 
the baitwell pump is turned off, if the seacock is open, the baitwell tub will continue to fill with water while you are 
underway.