{"product_id":"lisle-20610-inline-spark-tester-visual-ignition-system-diagnostics","title":"Lisle 20610 Inline Spark Tester – Visual Ignition System Diagnostics","description":"\u003ch2\u003eVisual ignition check in seconds\u003c\/h2\u003e\u003cp\u003eThe Lisle 20610 Inline Spark Tester provides a quick, visual way to assess the ignition system while the engine is running. By placing the tool between the spark plug and the plug wire, you can observe a mirror image of the ignition spark, offering an intuitive cue about the system’s activity without taking apart components.\u003c\/p\u003e\u003ch3\u003eHow it works\u003c\/h3\u003e\u003cp\u003eThe design is deliberately flexible with a double-ended boot: straight on one end and a 90° boot on the other. This lets you adapt to different spark plug boot geometries, so you can get a clear view of the spark in a variety of engine layouts. When the engine runs, the tool flashes a clear reflection of the ignition event, helping you spot irregularities that might suggest a misfire or a component that could benefit from testing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGives a visual check of the ignition system by showing a mirror spark\u003c\/li\u003e\n\u003cli\u003eCompatible with a wide range of ignition configurations and engines\u003c\/li\u003e\n\u003cli\u003eDouble-ended design with a straight boot and a 90° boot for versatile fit\u003c\/li\u003e\n\u003cli\u003eEngine running spark visualization provides real time insight without disassembly\u003c\/li\u003e\n\u003cli\u003eCompact, easy to carry and straightforward to use on the vehicle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy DIYers and pros use it\u003c\/h3\u003e\u003cp\u003eThis tool is a practical aid for routine maintenance, troubleshooting, or quick diagnostics on the road or in the shop. It supports a non invasive check to confirm spark presence, assess consistency, and guide further testing. While it does not replace parts testing, it gives a helpful first look that can save time and reduce guesswork during troubleshooting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSupports quick checks during routine maintenance or troubleshooting\u003c\/li\u003e\n\u003cli\u003eHelps identify obvious ignition faults without disassembly\u003c\/li\u003e\n\u003cli\u003eLightweight and durable for on vehicle use and transport\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePatent reference 6,714,015 underscores a design focused on fast, visual feedback. Use as a companion to more thorough diagnostics to build confidence when assessing ignition health.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the Lisle 20610 Inline Spark Tester used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It visually checks ignition systems by showing a mirror image of the spark while the engine runs, helping identify misfires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do you use the Lisle 20610 inline spark tester?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Connect between the spark plug and wire, choose the straight or 90 boot, start the engine, observe the flash.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lisle","offers":[{"title":"Default Title","offer_id":42465585135701,"sku":"B0002STSC6","price":28.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/lisle-20610-inline-spark-tester-front-view.jpg?v=1778012917","url":"https:\/\/plentytorque.co.uk\/products\/lisle-20610-inline-spark-tester-visual-ignition-system-diagnostics","provider":"PlentyTorque","version":"1.0","type":"link"}