Spark Plug Maintenance - Jacto PJM-20 Manual Del Operador

f. Reinstall the air filter element.
g. Reinstall the air filter by inserting the lower guides first and then the upper guide.

12.4. Spark plug maintenance

Recommended spark plug:
WJR2525: CMR4H (NGK)
WJR4025: CMR5H (NGK)
CAUTION!
Never use the spark plug out of the correct heat range.
To ensure the engine operates well, the spark plug must have an appropriate gap (0.6 mm - 0.7 mm) be free of dirt and foreign ma-
terial.
a. Loosen the 4-mm hex bolt and remove the engine upper cover.
CAUTION!
There are hot rotating parts under the cover.
Do not pull the starter grip nor start the engine without the upper cover.
b. Remove the spark plug cover. Clean any dirt or foreign material around the spark plug area.
WARNING!
Only carry out maintenance when the engine is cold.
Engine upper cover
4-mm hex bolt
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