Exmark Lazer Z Operator's Manual page 42

5.1.22 Remove engine shrouds and clean cooling fins (Air-cooled units only):
Service Interval: 80 hrs.
a) Stop engine, wait for all moving parts to stop, and remove key.
b) Remove cooling shroud clean-out covers (Kohler) or cooling shrouds
(Kawasaki air-cooled) from engine and clean cooling fins. Also clean dust, dirt,
and oil from external surfaces of engine, which can cause improper cooling.
c) Make sure cooling shroud clean-out covers or cooling shrouds are reinstalled.
Operating the engine without cooling shroud clean-out covers or cooling
shrouds will cause engine damage due to overheating.
5.1.23 Check spark plugs:
Service Interval: 160 hrs.
a) Remove spark plugs, check condition and reset gaps, or replace with new
plugs. See Engine Owners Manual.
5.1.24 Change fuel filter:
Service Interval: As Required
a) A fuel filter is installed between the fuel tanks and the engine. Replace
when necessary.
For Kohler EFI Units:
POTENTIAL HAZARD
♦ Fuel system components are under high pressure.
WHAT CAN HAPPEN
♦ The use of improper components can result in system
failure, gasoline leakage and possible explosion.
HOW TO AVOID THE HAZARD
♦ Use only approved fuel lines and fuel filters for high
pressure systems.
Note: For Kohler EFI units use only high pressure clamps and SAE R7 or R9
hose available from Exmark or Kohler. Clamps require special pliers P/N 1-
643394 (Oetiker P/N 14100118 or Kohler P/N 2445505) for installation.
Replacement Filters
Kohler EFI
Kohler Air-cooled (except EFI)
Kawasaki Liquid-cooled
Kawasaki Air-cooled
Note: When replacing the fuel filter for the Kohler EFI units, wet the interior
of the new filter with gasoline before installation to prevent the high pressure
pump from tearing the filter.
WARNING
Exmark P/N 99-9403 (low pressure)
Kohler P/N 2405003 (high pressure)
Kohler P/N 2405002
Kawasaki P/N 49019-1055
Kawasaki P/N 49019-7001
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