31
MAINTAINING THE SPARK PLUG
1. Stop the engine and allow it to cool. Grasp the spark plug boot firmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug from the cylinder head with a 5/8-inch socket,
turning counterclockwise.
3. Inspect the spark plug. If the spark plug is cracked, fouled or dirty, replace it with replacement part
#794-00098
, a
Champion QDZ4H
or an equivalent spark plug.
4. Use a feeler gauge to set the air gap at
0.025 in. (0.635 mm)
(Fig. 30).
5. Install the spark plug in the cylinder head. Tighten the spark plug with a 5/8-inch socket, turning it
clockwise until snug.
NOTE:
If using a torque wrench, torque to:
110-120 in.•lb. (12.3-13.5 N•m). Do not over tighten.
6. Reattach the spark plug boot.
WARNING:
Do not sand blast, scrape or clean spark plug electrodes. Grit in the
engine could damage the cylinder.
Fig. 30
0.025 in.
(0.635 mm)
CLEANING AND STORAGE
CLEANING
Use a small brush to clean the outside of the unit. Do not use strong detergents. Household cleaners
that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic.
Wipe off any moisture with a soft cloth.
WARNING:
To avoid serious personal injury, always stop the engine and allow it to
cool before cleaning or maintaining the unit.
Summary of Contents for RS3100
Page 23: ...23 Fig 17 Fig 18 Release Button 90 Edging Hole Knob...
Page 38: ...38 NOTES...
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