9-4
FLYWHEEL/IGNITION COIL HRX217HYA • HRX217HZA
SPARK TEST
Inspect the following before performing the spark test.
• Faulty spark plug
• Loose spark plug cap
• Water in the spark plug cap (Leaking the ignition coil
secondary voltage)
• Loose ignition coil connector.
Disconnect the spark plug cap from the spark plug.
Connect a known-good spark plug to the spark plug cap and
ground the spark plug to the cylinder head cover bolt.
Move the throttle lever out of the STOP position.
Briskly crank the engine by pulling the recoil starter and check
whether sparks jump across the electrode.
INSPECTION
• IGNITION COIL
HYA TYPE
Remove the ignition coil (page 9-2).
<Primary Side Resistance>
Measure the resistance of the primary coil by attaching one
ohmmeter lead to the ignition coils primary terminal while
touching the other test lead to the iron core.
<Secondary Side Resistance>
Attach an ohmmeter lead between the spark plug cap and the
iron core, and measure the resistance of the secondary coil.
Primary side resistance 0.4 ~ 0.6
Ω
Secondary side resistance 8.3 ~ 12.5 kΩ
SPARK PLUG CAP
ORIGINAL SPARK PLUG
NEW SPARK PLUG
HEAD COVER BOLT
PRIMARY TERMINAL
IRON CORE
SECONDARY
TERMINAL
IRON CORE
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