Systems
Chris-Craft 3–25
Selectable Exhaust
Check your state and local noise laws prior to using the Corsa
Selectable Exhaust system.
Chris-Craft boats offer the option of a “selectable exhaust” which provides a “throaty” sound when operat-
ing away from shore and a “muffled” exhaust when operating within basin sound limitation boundaries.
The mode is selected by a switch located on the helm control panel. Actual location of the switch may vary
from model to model.
Prior to every use of the boat, examine the exhaust system to ensure tightness of the fittings.
Engine Compartment Blower
Ventilate the engine compartment before starting the engine(s). The
compartment should be ventilated a minimum of four (4) minutes.
The engine compartment may accumulate fumes when the engines are not running. Before starting the
engine(s) ventilate the engine compartment to remove any vapors that may have accumulated. The best
course of action is to open the engine hatch and allow the vapors to escape. However, if that is not possible,
or is inconvenient, then each boat is equipped with an engine compartment exhaust blower which can be
used to ventilate the compartment. Run the blower for at least four (4) minutes to ventilate the compart-
ment before you start the engine.
If the boat is moving slowly, gasoline fumes can accumulate because not enough air is moving through the
engine compartment to keep it clear of vapors.
Anytime the boat is moving slow, engage the blower to remove any gasoline vapors that
may be accumulating in the engine compartment.
Inspect the blower system prior to every use. The blower makes a distinctive sound when operating prop-
erly. If the blower is not operating, repair or replace prior to using the boat again.
The exhaust blower is activated by a switch (Figure 3-22) located on, or near, the helm control panel.
Actual location of the switch may vary from model to model.
A warning label reminds you of the dangers of gasoline vapors and when to run the blower.
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