Exmark Lazer HP - Manual (Page 44)

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Replacement Filters
Exmark P/N 99-9403 (low pressure)
Kohler 26 HP EFI
Kohler P/N 2405003 (high pressure)
Kohler Air-cooled (except 26 HP EFI) Kohler P/N 2405002
Kawasaki Liquid-cooled Kawasaki P/N 49019-1055
Kawasaki Air-cooled Kawasaki P/N 49019-7001
Note: When replacing the fuel filter for the Kohler 26 HP EFI units, wet the
interior of the new filter with gasoline before installation to prevent the high
pressure pump from tearing the filter.
5.1.25 Fuel pressure relief and priming procedure: (26 HP Kohler EFI units only)
Service Interval: As required
WARNING
POTENTIAL HAZARD
♦
Fuel system components remain under high pressure,
even when the engine is stopped.
WHAT CAN HAPPEN
♦
Failure to relieve pressure from the system can cause
gasoline to spray or spill. Spilled fuel or fuel vapors
could be ignited by hot parts.
HOW TO AVOID THE HAZARD
♦
Allow the engine to cool completely.
♦
Safely relieve the pressure from the fuel system before
attempting to service the fuel system.
A Kohler pressure gauge with an integral relief valve (Kohler Part No. 2445504)
is recommended for relieving pressure and purging air in the fuel system.
To relieve the system of pressure:
a) Stop engine and remove key.
b) Allow the engine to cool completely.
c) Connect the black tester hose from the Kohler pressure gauge to the test
valve in the fuel rail.
d) Route the clear hose into a portable gasoline container and depress the
button on the tester relief valve.
IMPORTANT: The fuel system for Kohler 26 HP EFI units must be purged of all
air prior to start up if the engine has been allowed to run out of gas or the system
has been disassembled.
To purge the air out of the fuel system:
a) Connect the black hose to the test valve in the fuel rail and route the clear
tube into a portable gasoline container.
b) Depress and hold the release button and crank the engine in 10-15 second
intervals, allowing a 60 second cool-down period between intervals, until air
is purged and fuel is visible in the discharge tube.
NOTE: If you do not have the pressure gauge, you can crank the engine in 10-
15 second intervals, allowing a 60 second cool-down period between cranking
intervals, until the engine starts.