Replace spark plug – Craftsman 107.27768 User Manual
Page 25
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Pre-Cleaner Service
NOTE: Replace a worn or damaged pre-cleaner.
1. Figure 28. Wash the pre-cleaner in liquid detergent
and water.
2. Squeeze the pre-cleaner dry and saturate with
engine oil. Remove all excess oil by squeezing the
pre-cleaner in an absorbent cloth.
Air Filter Service
NOTE: Replace a worn or damaged air filter.
1. Figure 28. If stamped “Washable,” the filter can be
washed with warm water and mild soap.
2
. Rinse with tap water with the screen side UP allowing
dirt and debris to filter out.
3. Allow the filter to dry overnight before reinstalling.
Air Filter
Figure 28. Air Filter Service
REPLACE SPARK PLUG
Service interval: Yearly
Replacement Spark Plug: 71/500/691043
Spark Plug Gap: .030” (.76mm)
1
. Stop the engine and allow it to cool.
2. Clean the area around the spark plug.
3. Remove the spark plug.
4. Check the spark plug gap. It should be .030” (see
Figure 29).
5. Reinstall the plug into the cylinder head. Torque the
plug to 180 in. lbs (20 N.m.).
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