Reswish Inline Spark Plug Tester, Engine Ignition Coil Tester, Engine Plug Ignition Straight Boot Tester with Light,Plug-in Engine Ignition Tester for Automotive, Car, Lawnmower, Small Motor Vehicles
- [Easy to Use] 1. Turn off the engine and remove the spark plug wire. 2. Connect the black connector to the spark plug. 3. Insert the metal end of the tester into the spark plug wire. 4. Start the engine. (If the ignition circuit is completed, the bulb will flash..
- [Scope of Application] The spark plug tester is universal and is applicable to testing and excluding small or large internal/external engines, such as engines, trucks, cars, lawn mowers, marine engines and motorcycles. It is the first choice for any individual or professional machinery shop or auto repair shop..