Ignition Coil: Testing and Inspection

IGNITION COIL INSPECTION

(a) Remove the air cleaner hose.
(b) Disconnect the high-tension cords and ignition coil connectors from the ignition coils.





(c) Inspect the primary coil resistance.
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.

Primary coil resistance:
Cold: 0.67 - 1.05 ohms
Hot: 0.85 - 1.23 ohms

If the resistance is not as specified, replace the ignition coil.
(d) Remove the ignition coils.





(e) Inspect the secondary coil resistance.
Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminals.

Secondary coil resistance:
Cold: 9.3 - 16.0 K ohms
Hot: 11.7 - 18.8 K ohms

If the resistance is not as specified, replace the ignition coil.
(f) Reinstall the ignition coils.
(g) Reconnect the ignition coil connectors and the high-tension cords.
(h) Reinstall the air cleaner hose.