OPERATING INSTRUCTIONS
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5. Inspect the spark plug: If the electrode is oily, clean it using a clean, dry rag. If the electrode has
deposits on it, polish it using emery paper. If the white insulator is cracked or chipped, the spark plug
needs to be replaced. NOTICE: Use only A5RTC type spark plug or equivalent. Using an incorrect
spark plug may damage the engine.
6. When installing a new spark plug, adjust the plug’s gap to the specification on the Specifications
chart. Do not pry against the electrode, the spark plug can be damaged.
7. Apply anti-sieze material to Spark Plug threads. Install the new spark plug or the cleaned spark plug
into the engine. • Gasket-style: Finger-tighten until the gasket contacts the cylinder head, then
tighten about 1/2-2/3 turn more. • non-gasket-style: Finger-tighten until the plug contacts the
cylinder head, then tighten about 1/16 turn more. NOTICE: Tighten the spark plug properly. if loose,
the spark plug will cause the engine to overheat. IF overtightened, the threads in the engine block
will be damaged.
8. Apply dielectric spark plug boot protector (not included) to the end of the spark plug and reattach
the cap securely.
9. Replace Spark Plug Access Cover and Access Panel.
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