Exmark Radius X Series Operator's Manual page 43

7. Check the oil level; refer to Checking the
Engine Oil–Kawasaki Engine section.
8. Start the engine and check for leaks.
Servicing the Spark Plug
Service Interval: Every 100 hours/Yearly
(whichever comes
first)—Check the spark
plug (Kawasaki engine).
Every 200 hours/Every 2
years (whichever comes
first)—Replace the spark
plug (Kawasaki engine).
Ensure that the air gap between the center and side
electrodes is correct before installing the spark plug.
Use a spark plug wrench for removing and installing
the spark plug and a gapping tool or feeler gauge to
check and adjust the air gap. Install a new spark plug
if necessary.
The spark plug is RFI compliant. Equivalent alternate
brand plugs can also be used.
Type : NGK ® BPR4ES or equivalent
Figure 31
Air Gap: 0.030 inch (.76 mm)
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
g027660
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.
43
Maintenance
Figure 32
Figure 33
g027478
g027479