{"product_id":"betooll-petrol-engine-compression-tester-kit-9pc-300-psi-gauge-32-blade-feeler-gauge-spark-plug-gap-tool","title":"BETOOLL Petrol Engine Compression Tester Kit 9pc — 300 PSI Gauge, 32-Blade Feeler Gauge \u0026 Spark Plug Gap Tool","description":"\u003cp\u003e\u003cstrong\u003eBETOOLL's 9-piece petrol engine compression tester kit measures cylinder compression up to 300 PSI and includes a 32-blade steel feeler gauge and spark plug gap tool for precise ignition and engine diagnostics.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit combines a triple-range compression gauge with multiple adapters and a full steel feeler gauge set so you can quickly check cylinder health, valve sealing, and spark plug gaps. It’s designed for petrol engines (not compatible with diesel\/crude oil systems) and provides readable, repeatable pressure readings in PSI, bar, and kg\/cm². The included release valve allows single-handed bleeding of test pressure, while laser-etched feeler blades make gap setting faster and more accurate.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate and readable is the compression gauge?\u003c\/h3\u003e\n\u003cp\u003eThe BETOOLL gauge displays pressure in three scales—0–300 PSI, 0–20 bar, and 0–21 kg\/cm²—so you can interpret results in the units you prefer. The dial is large enough for easy vision during testing and the mechanical construction gives stable readings when used with recommended adapters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTriple-range dial: 0–300 PSI \/ 0–20 bar \/ 0–21 kg\/cm²\u003c\/li\u003e\n  \u003cli\u003eClear, large-faced analog display for quick reading\u003c\/li\u003e\n  \u003cli\u003eBuilt-in release valve for controlled pressure venting\u003c\/li\u003e\n  \u003cli\u003eSturdy construction suitable for workshop and roadside checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and cylinders will this kit work with?\u003c\/h3\u003e\n\u003cp\u003eThe kit is made for petrol\/gasoline engines across a wide range of vehicles and equipment. Four adapters cover most spark-plug-to-cylinder access points, making the set useful for cars, motorcycles, ATVs, lawn mowers, small boats, generators, and light trucks—but not for diesel engines that use different testing methods.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour threaded adapters for common spark plug sizes and ports\u003c\/li\u003e\n  \u003cli\u003eCompatible with passenger cars, motorcycles, lawn equipment, and small marine engines\u003c\/li\u003e\n  \u003cli\u003eNot designed for diesel\/crude oil engine cylinders\u003c\/li\u003e\n  \u003cli\u003eWorks with both overhead and recessed plug wells when adapters fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the 32-blade feeler gauge and spark plug tool improve troubleshooting?\u003c\/h3\u003e\n\u003cp\u003eThe stainless-steel feeler gauge gives precise thickness measurements to set spark plug gaps and check valve lash or clearance. Each blade is laser-etched with metric sizes for fast selection, reducing guesswork when tuning ignition or diagnosing compression-related issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e32 blades cover a wide range of gap sizes for accurate spark plug setup\u003c\/li\u003e\n  \u003cli\u003eLaser-etched markings for easy identification under shop lighting\u003c\/li\u003e\n  \u003cli\u003eDurable steel construction resists bending and wear\u003c\/li\u003e\n  \u003cli\u003eCompact fold-up design keeps blades organized and portable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features help with ease of use and durability?\u003c\/h3\u003e\n\u003cp\u003eThe compression tester includes a one-handed release valve to evacuate built-up pressure safely and quickly, and the hose and fittings are built to withstand repeated shop use. The feeler gauge’s etched blades and robust pivot rivet extend working life, while the kit’s components pack neatly for transport or storage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-handed pressure release for safe, quick operation\u003c\/li\u003e\n  \u003cli\u003eReinforced hose and solid fittings for repeated testing cycles\u003c\/li\u003e\n  \u003cli\u003eLaser-etched feelers for long-term readability\u003c\/li\u003e\n  \u003cli\u003eCompact case-friendly set suitable for mobile mechanics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The BETOOLL 9-piece petrol compression tester kit suits DIY mechanics, home workshop hobbyists, and professional technicians who need a reliable, portable way to check petrol engine cylinder compression and set spark plug gaps. If you service cars, motorcycles, lawn and garden equipment, small marine engines, or light trucks and want clear readings plus precise gap measurement, this kit supplies the core tools for routine diagnostics and maintenance.\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: Can I use this tester on diesel engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This BETOOLL kit is designed for petrol (gasoline) engines and is not suitable for diesel\/crude oil engine compression testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include multiple adapters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes four threaded adapters to fit most spark plug ports across cars, bikes, lawn mowers, and small engines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BETOOLL","offers":[{"title":"Default Title","offer_id":48086226567326,"sku":"B0DQSZ23C8","price":49.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/betooll-compression-tester-front-view_8a80ef15-8abd-43fe-a33b-91eb9102ab1b.jpg?v=1785890626","url":"https:\/\/northtrailauto.ca\/products\/betooll-petrol-engine-compression-tester-kit-9pc-300-psi-gauge-32-blade-feeler-gauge-spark-plug-gap-tool","provider":"North Trail Auto","version":"1.0","type":"link"}