Exmark Radius X Series Operator's Manual page 47

Note: Ensure the oil filter gasket touches the
engine, then an extra 3/4 turn is completed.
Note: Dispose of the used oil at a recycling
center.
6. Slowly pour approximately 80% of the specified
oil into the filler tube—use oil recommended in
the Checking the Engine Oil section.
Figure 39
7. Check the oil level; refer to Checking the
Engine Oil section.
8. Start the engine and check for leaks.
Servicing the Spark Plug
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Service Interval: Every 200 hours—Check
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: Champion XC12YC or equivalent
Air Gap: 0.030 inch (.76 mm)
47
Maintenance
Figure 40
the spark plug (Kohler
engine).
Every 500 hours—Replace
the spark plug (Kohler
engine).
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