Motorcycle engine ignition system Kawasaki VN900 Vulcan (2006-2024)

Ignition system troubleshooting
Ignition system troubleshooting

Ignition coil — removal and installation
Warning! The ignition system produces extremely high voltage. Do not touch the spark plugs, ignition coils, or spark plug high-tension cables while the engine is running, or you could receive a severe electrical shock. Caution! Do not disconnect the...

Ignition coil inspection
Remove the ignition coils (see Ignition coil removal ). Measure the arcing distance with a commercially available coil tester [A] to check the condition of the ignition coil [B]. Connect the ignition coil (with the spark plug cap left attached at...

Spark plug — removal and installation
Spark plug removal Remove: Fuel Tank (see Fuel tank removal in the Fuel System (DFI) chapter) Spark Plug Caps [A] Remove the spark plug using the plug wrench vertically. Special Tool - Spark Plug Wrench, Hex16: 57001-1262 Caution! The insulator [A]...

Spark plug condition inspection
Remove the spark plugs (see Spark plug removal ). Visually inspect the spark plugs. ★ If the spark plug center electrode [A] and/or side electrode [B] are corroded or damaged, or if the insulator [C] is cracked, replace the plug. ★ If the spark plug...

Ignition coil primary peak voltage inspection
Note. Be sure the battery is fully charged. Remove the fuel tank (see Fuel tank removal in the Fuel System (DFI) chapter). Remove all the spark plug caps but do not remove the spark plugs. Install new spark plugs into all the spark plug caps, and...

Crankshaft sensor — removal and installation
Crankshaft sensor removal Remove: Alternator Cover (see Alternator cover removal ) Bolts [A] Alternator Lead Holder Plate [B] Crankshaft Sensor Lead Grommet [C] Crankshaft Sensor Bolts [D] Remove the crankshaft sensor [E] from the alternator cover....

Crankshaft sensor inspection
Remove: Alternator Outer Cover (see Alternator outer cover removal ) Crankshaft Sensor Lead Connector [A] (Disconnect) Set the hand tester to the x 100 Ω range and connect it between the terminals in the connector. Special Tool - Hand Tester:...

Crankshaft sensor peak voltage inspection
Remove: Alternator Outer Cover (see Alternator outer cover removal ) Remove all the spark plug caps but do not remove the spark plugs. Disconnect the crankshaft sensor lead connector. Connect a commercially peak voltage adapter [A] to the hand...

Interlock operation inspection
Using a jack raise the rear wheel off the ground. Special Tool - Jack: 57001-1238 1st Check Start the engine to the following conditions. Condition: Transmission Gear → 1st position Clutch Lever → Release Sidestand → Down or Up Turn the ignition...

IC igniter inspection
The IC igniter is built in the ECU [A]. Refer to the Fuel System (DFI) chapter.