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SECTION 7: MAINTENANCE AND REPAIR INSTRUCTIONS
Replacing the Spark Plug
Use a Champion RDJ7Y spark plug (or equivalent). The
correct air gap is 0.020 inch (0.5 mm). Remove the plug
after every 25 hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug
from the cylinder head by turning a 5/8 in. socket
counterclockwise.
3. Replace cracked, fouled or dirty spark plug. Set the
air gap at 0.020 in. (0.5 mm) using a feeler gauge.
See Figure 29.
CAUTION: Do not sand blast, scrape or
clean electrodes. Grit in the engine could
damage the cylinder.
4. Install a correctly-gapped spark plug in the cylinder
head. Tighten by turning the 5/8 inch socket
clockwise until snug.
If using a torque wrench torque to:
110-120 in.•lb. (12.3-13.5 N•m).
Do not over tighten.
Accessories/Replacement Parts
2-Cycle Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182780
Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610311
Spark Arrestor . . . . . . . . . . . . . . . . . . . . . . . . . . . .182747
Replacement Line . . . . . . . . . . . . . . . . . . . . . . . . 610375
Replacement Line - . estF . . . . . . . . . . . . . . . . 5.3547
. . . . . . . . . . . . . . . . . . . . . . . . . 610347
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0667
. . . . . . . . . . . . . . . . . . . . . 108947
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