Spark Test - Honda GX690 Workshop Manual

SPARK TEST

Inspect the following before spark test.
• Faulty spark plug
• Loose spark plug cap
• Water in the spark plug cap (Leaking the ignition coil
secondary voltage)
• Check the ignition coil connection
Disconnect the spark plug cap (1) from the spark plug
(2).
Connect a known-good spark plug (3) to the spark plug
cap and ground the spark plug to the head cover bolt
(4).
Crank the engine by operating the starter motor several
seconds and check whether sparks jump across the
electrode.
Do not operate the starter motor for more than 5
seconds at a time. When operating the starter motor
several times in a row, wait 10 – 20 seconds between
operation to recover the battery voltage.
IGNITION SYSTEM
(3)
(1)
(4)
(2)
9-5