Inline Spark Plug Tester - Spark Plug Tester Automotive Ignition System in-line Coil Tester Auto Test Tool for Small Engine Car Lawn Mower Chainsaw 1 pc

?--BEST CUSTOMER SERVICES!--? We can give you a very fast delivery and good customer service, so I believe you will have a wonderful shopping experience! : ) Features: 1)--- Quickly diagnose ignition system problems, lack or no spark condition. 2)--- Easily test ignition circuit continuity at each cylinder. 3)--- The tool connects between the spark plug and the plug wire. 4)--- Great for trouble shooting all internal combustion engines 5)--- Find dirty spark plugs, defective points, bad cables or connections, etc. ???Usage Method: ---Step 1? With engine off, remove spark plug wire. ---Step 2? Attach black connector spark plug. ---Step 3? Insert metal end of tester into spark plug wire. ---Step 4? Try to start the engine. ---Step 5? If ignition circuit is complete, bulb will flash Specification: ? Material:Plastic+Metal ? Main Color: As the picture shows ? Size Approx:Total length 29cm/11.4 inch, test pen length 12.5cm/5 inch, diameter 2.5cm/0.98 inch, spark plug length 6.5cm/2.6inch ? Quantity:1Pc Package Included: * 1X Automotive Spark Plug Test Tool