Servicing An Exmark Engine - Exmark Radius X Series Operator's Manual

Maintenance
Removing the Spark Plug
1. Disengage the PTO and ensure the parking brake
is engaged.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Disconnect the wire from the spark plug.
4. Clean around the spark plug to prevent dirt from
falling into the engine and potentially causing
damage.
5. Remove the spark plug and metal washer.
Checking the Spark Plug
1. Inspect the spark plug
Note: If you see light brown or gray on the
insulator, the engine is operating properly. A
black coating on the insulator usually means the
air cleaner is dirty.
Important: Do Not clean the spark plug.
Always replace the spark plug when it has a
black coating, worn electrodes, an oily film,
or cracks.
2. Check the gap between the center and side
electrodes.
3. Set the gap to 0.030 inch (.76 mm).
Figure 41
Figure 42
Installing the Spark Plug
1. Install the spark plug. Make sure that the air gap
is set correctly.
2. Tighten the spark plug to 18 to 22 ft-lb (25 to 29
N-m).
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3. Push the wire onto the spark plug.

Servicing an Exmark Engine

Servicing the Air Cleaner with
Canister Style Air Filter
Service Interval: Every 250 hours—Replace
Note: Service the air cleaner more often under
extremely dusty, dirty conditions.
1. Park the machine on a level surface, disengage the
blade control switch, move the motion control
g027479 levers to the brake position, stop the engine,
remove the key, and wait until all moving parts
stop before leaving the operating position.
2. Release the latches on the air cleaner and pull
the air cleaner cover off the air-cleaner body (see
Figure 44).
48
Figure 43
the air filter (more often
under extremely dusty,
dirty conditions)(Exmark
engine).
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