Inspect the Complete Fuel
System for Leakage and Change
Fuel Filter
Although the boat engine is similar to
an automobile engine, the engine compart-
ment differs substantially. The underside
of an automobile engine compartment is
totallyopentotheatmosphere.Thisallows
complete air circulation and ventilation. A
boat engine is housed in a closed compart-
ment, the underside of which is the bottom
(hull) of the boat.
The enclosed engine compartment limits
theventilationofgasolineandoilfumes.Be-
causeconnedgasolinevaporsmixedwitha
little air can form an explosive atmosphere, it
isimportanttobeespeciallyvigilantinper-
forming the following two (2) operations:
Step 1: Inspectthe boat bilge areaunder
the engine for the evidence of
oil and gasoline—or any gaso-
line odor. This inspection should
take place the rst time the boat
isstartedeachday.Raisetheen-
ginecoverandvisuallylookatthe
bilge area under the engine.
Step 2: Runthe bilge blower for at least
four (4) minutes to ventilate the
bilge area each time before start-
ing the engine.
Gasoline is explosive. If a gasoline odor is
present or gasoline is visually observed in
the bilge area during inspection, DO NOT
START YOUR ENGINE! Remove the ignition
key from the ignition switch and call an au-
thorized MasterCraf dealer for service.
Note: If there is evidence of loose fuel
ttings, deteriorated lines or other prob-
lems associated with the fuel system, call
an authorized MasterCraft dealer. Fuel
system service on later-model MasterCraft
boats requires special service tools and
special training. Due to the potential for
serious consequences when errors occur
in servicing the fuel system, MasterCraft
strongly encourages all boat owners and
operators to seek professional assistance
from an authorized MasterCraft dealer’s
service department whenever any service
Care and Maintenance • 2014 MasterCraft Owners Manual Page 6-25
C A R E A N D M A I N T E N A N C E