Replacing The Spark Plug - Yard Machines Y125 Operator's Manual

REPLACING THE SPARK PLUG
1. Stop the engine and allow it to cool. Grasp the spark plug wire
firmly and pull the cap from the spark plug.
2. Clean dirt from around the spark plug. Remove the spark plug from
the cylinder head by turning a 5/8 in.socket counterclockwise.
_ ARNING: Do not sand blast, scrape or clean
electrodes. Grit in the engine could damage the cylinder.
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3. inspect the spark plug. if the spark plug is cracked, fouled or
dirty, replace it with a replacement part #753=06193,
Champion@ RDJ7J or equivalent spark plug.
4. Use a feeler gauge to set the air gap at 0.025 in. (0.635 ram}
(Fig. 22).
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.olb. (12.3-13.5 Nora). Do not over tighten.
6. Reconnect the spark plug wire.
0.025 in.
(0.635 ram)
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Fig. 13
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