Challenge XSS40E - Maintenance; Air Filter Maintenance; Spark Plug Maintenance

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Maintenance
Cleaning or Replacing Spark Plug
2a Once the engine has cooled, pull off the spark plug boot with a twist. Remove the spark plug
using the socket spanner supplied.
2b Clean the plug with a wire brush.
2c Using a feeler gauge set the gap to 0.7mm.
2d Install the spark plug carefully by hand, to avoid cross-threading.
2e After the spark plug is seated, tighten with the spanner to compress the washer.
Cleaning or Replacing Air Filter
WARNING! Never run the engine without the air lter element installed.
1. Loosen the fastener that holds the cover.
2. Open the cover and remove the lter.
3. To loosen debris, gently tap the lter on a hard surface. If the lter is excessively dirty, replace
with a new lter.
4. Install the lter.
5. Install the cover tabs into the slots.
6. Close the cover and secure with the fastener.
2a 2b
0.7-0.8 mm
2c