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Service Engine - 28
SERVICE ENGINE
Checking Spark Plug
Check spark plugs at the intervals recommended in the
Service Intervals section. See the engine manufacturer’s
owner’s manual provided with your machine for the
complete procedure.
Adjusting Carburetor - Carbureted Engines
NOTE: Carburetor is calibrated by the engine
manufacturer and is not adjustable.
If engine is operated at altitudes above 1829 m (6000
ft), some carburetors may require a special high
altitude main jet.
If engine is hard to start or runs rough, see Troubleshooting
section of this manual.
Possible engine surging will occur at high throttle with
transmission in neutral and mower disengaged. This is a
normal condition due to the emission control system.
After performing checks in Troubleshooting section and
your engine is still not performing correctly, contact the
local engine manufacturer’s authorized servicing dealer.
Replacing Fuel Filter - Carbureted Engines
1. Park machine safely. (See Parking Safely in the Safety
section.)
2. Allow engine to cool.
3. Place a drain pan under hoses to catch any fuel that
may be left in hoses.
MX15300
Picture Note: Kawasaki engine shown.
4. Disconnect fuel hose (A) from the outlet side of fuel filter
(B), and drain gasoline into a properly marked container.
5. Remove fuel filter from inlet fuel hose (C). Discard filter.
6. Connect a new fuel filter to hoses. Make sure fuel filter is
installed with arrow pointing in direction of fuel flow.
Replacing Fuel Filter - Fuel Injected Engines
1. Park machine safely. (See Parking Safely in the Safety
section.)
2. Allow engine to cool.
3. Place a drain pan under hoses to catch any fuel that
may be left in hoses.
c CAUTION: Avoid injury! Touching hot surfaces
can burn skin. The engine and components will
be hot if the engine has been running. Allow
the engine to cool before servicing.
c CAUTION: Avoid injury! Fuel vapors are
explosive and flammable:
• Do not smoke while handling fuel.
• Keep fuel away from flames or sparks.
• Shut off engine before servicing.
• Cool engine before servicing.
• Work in a well-ventilated area.
• Clean up spilled fuel immediately.
IMPORTANT: Avoid damage! When installing a new
fuel filter, the filter arrow must be pointing in the
direction of fuel flow. Make sure clamps are installed
properly.
c CAUTION: Avoid injury! Fuel vapors are
explosive and flammable:
• Do not smoke while handling fuel.
• Keep fuel away from flames or sparks.
• Shut off engine before servicing.
• Cool engine before servicing.
• Work in a well-ventilated area.
• Clean up spilled fuel immediately.
A
C
B