Amico AH7500E, Руководство пользователя

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The spark plug must be securely tightened. An improperly
tightened spark plug can become very hot and could damage the
engine.
Never use spark plugs which have an improper heat range. Use only
the recommended spark plugs or equivalent.
5. Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gap should be: 0.70-0.80 mm (0.028-0.031 in)
0.70-0.80 mm (0.028-0.031 in)
6. Check that the spark plug washer is in good condition, and thread the
spark plug in by hand to prevent cross-threading.
7. After the spark plug is seated, tighten with a spark plug wrench to
compress the washer.
- If installing a new spark plug, tighten 1/2 turn after the spark plug seats
to compress the washer. If reinstalling a used spark plug, tighten
1/8-1/4 turn after the spark plug seats to compress the washer.
NOTICE