Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire. With the engine running, the tool flashes a mirror image of ignition spark.
Lisle 20610 Inline Spark Tester One Size Factory
Lisle 50850 Ignition Spark Tester, One Size, Factory
Lisle 50850 Ignition Spark Tester One Size Factory
Lisle 20610 Inline Spark Tester
Lisle 20680 Replacement Bulb, for 20610 Inline Spark Tester
