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12) Remove the plug from the boot and if it is not faulty, insert it back in the engine seat. FIRST
SCREW THE SPARK PLUG IN BY HAND in order not to damage the thread. When the spark plug
is in the seat, tighten it carefully with a spark plug spanner. If the spark plug is brand new, tighten it
with a spanner by 2/3 of a turn. If the spark plug has been used before, tighten it only by 1/8 – 1/4 of
a turn. WHEN TIGHTENING THE SPARK PLUG, FOLLOW THE INSTRUCTIONS FROM THE SPARK
PLUG MANUFACTURER!
13) Place the boot on the spark plug. The boot is mounted correctly when the spark plug insulator is
covered completely with the boot.
WARNING: When the boot has been removed from the spark plug, NEVER START THE
ENGINE – if the engine is started without the spark plug boot on, the control unit will be
destroyed.
WRONG!!!
IF THE ICU IS ON (THE SIGNALLING DIODE IS LIT OR
FLASHING), THIS SITUATION MUST NOT OCCUR!!!
TROUBLESHOOTING NOTE
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