Product Manual

13
MAINTAINING THE SPARK PLUG
1. Stop the engine and allow it to cool. Grasp the spark plug boot
f
irmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug from the
c
ylinder 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 #753-06193, a Champion
RDJ7J or an equivalent spark plug.
4. Use a feeler gauge to set the air gap at 0.025 in. (0.635 mm)
(Fig. 14).
5
. Install the spark plug in the cylinder head. Tighten the spark plug
with a 5/8-inch socket, turning it clockwise until snug.
N
OTE: 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. 14
0.025 in.
(0.635 mm)