80
Maintenance Section
Fuel System - Prime
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Illustration 29
Location of fuel inlet screen
1. Disconnect the fuel supply line.
2. Remove the fuel inlet screen.
3. Clean the fuel inlet screen with a nonflammable
solvent.
4. Install the fuel inlet screen.
5. Connect the fuel supply line.
i01007661
Fuel System - Prime
SMCS Code: 1258-548
Fuel leaked or spilled onto hot surfaces or elec-
trical components can cause a fire. To help pre-
vent possible injury, turn the start switch off when
changing fuel filters or water separator elements.
Clean up fuel spills immediately.
Prime the fuel system in order to fill the fuel filter.
Prime the fuel system in order to purge trapped
air. The fuel system should be primed under the
following conditions:
•
Running out of fuel
•
Storage
•
Replacement of the fuel filter
Engines that are Equipped with a
Fuel Priming Pump
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Illustration 30
(1) Select knob
(2) Plunger
1. Turn select knob (1) counterclockwise until the
indicator is in line with the body of the priming
pump.
2. Unlock the plunger and operate the plunger until
a resistance is felt. A considerable number of
pump strokes may be required.
3. Push in plunger (2) and tighten by hand.
4. Turn select knob (1) clockwise until the indicator
is in line with the fuel outlet.
NOTICE
Do not crank the engine continuously for more than
30 seconds. Allow the starting motor to cool for two
minutes before cranking the engine again.
5. Promptly start the engine. If the engine runs
rough, increase the engine rpm to one half of
the rated rpm.
Note: If the engine will not start, further priming may
be necessary. If the engine continues to misfire
or smoke after starting, further priming may be
necessary.
Engines that are Not Equipped with
a Fuel Priming Pump
NOTICE
Do not allow dirt to enter the fuel system. Thoroughly
clean the area around a fuel system component that
will be disconnected. Fit a suitable cover over any dis-
connected fuel system components.
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