{"product_id":"performance-tool-leakdown-test-kit-w-case-117-1143","title":"Performance Tool Leakdown Test Kit with Case - Harley \u0026 Indian V-Twin","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Performance Tool\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003ePerformance Tool supplies hand tools, shop equipment and specialty service tools covering the jobs a home mechanic runs into on a V-twin build or service.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eThe Performance Tool Leakdown Test Kit is an essential diagnostic tool for any V-twin owner, allowing you to accurately assess the internal health of your engine. This kit helps pinpoint compression loss across intake, exhaust, and crankcase pathways, identifying issues like worn valves, rings, or seals without the need for a full engine teardown. It's a critical investment for maintaining peak performance and avoiding costly surprises on your Harley or Indian motorcycle.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eAdjustable pressure regulator for accurate readings\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eIncludes 10 mm, 12 mm, and 14 mm spark plug adapters\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eIdentifies valve, ring, and crankcase leaks\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eComes with a durable carrying case for storage\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEssential for V-twin engine diagnostic work\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eHelps prevent major engine failures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA proper leakdown test provides far more insight than a standard compression test, revealing exactly where your engine might be losing pressure. This Performance Tool kit is specifically designed for V-twin motorcycles, offering the precision and adaptability needed for accurate diagnostics. Understanding the condition of your engine's top end and bottom end components is key to maximizing power and reliability.\u003c\/p\u003e\u003ch3\u003ePrecision Diagnostics for V-Twin Engines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdjustable pressure regulator for precise testing control\u003c\/li\u003e\n\u003cli\u003eIncludes 10 mm, 12 mm, and 14 mm spark plug hole adapters for broad compatibility\u003c\/li\u003e\n\u003cli\u003eIdentifies leaks in valves, piston rings, and crankcase seals\u003c\/li\u003e\n\u003cli\u003eComes with a sturdy carrying case for organized storage and transport\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaintain Peak V-Twin Performance\u003c\/h3\u003e\u003cp\u003eRegular leakdown testing can catch minor issues before they become major problems, saving you time and money in the long run. This kit is user-friendly for both professional mechanics and DIY enthusiasts, providing clear readings that translate directly into actionable repair decisions. Keep your Harley or Indian V-twin running strong by integrating this vital diagnostic tool into your maintenance routine.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Performance Tool\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e W89729\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 039564047992\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 15.2 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 11.5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 3.5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.8 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Mainland)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat does a leakdown test actually measure?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eIt measures how much combustion pressure leaks past the rings, valves, and gaskets — revealing wear that compression tests alone can't detect. This helps pinpoint the exact source of compression loss.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDo I need special air pressure to run this kit?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, you will need a shop air compressor. The kit includes an adjustable pressure regulator, and you'll set your compressor to the recommended pressure shown on the gauge during testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill this kit work on my specific Harley-Davidson or Indian Motorcycle?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis kit fits all V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models, that use standard 10 mm, 12 mm, or 14 mm spark plug configurations. Confirm your spark plug size before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tools\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Performance Tool\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/performance-tool\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Performance Tool Leakdown Test Kit with Case - Harley \u0026 Indian V-Twin\",\"item\":\"https:\/\/vtwinbikers.com\/products\/performance-tool-leakdown-test-kit-w-case-117-1143\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does a leakdown test actually measure?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It measures how much combustion pressure leaks past the rings, valves, and gaskets — revealing wear that compression tests alone can't detect. This helps pinpoint the exact source of compression loss.\"}},{\"@type\":\"Question\",\"name\":\"Do I need special air pressure to run this kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, you will need a shop air compressor. The kit includes an adjustable pressure regulator, and you'll set your compressor to the recommended pressure shown on the gauge during testing.\"}},{\"@type\":\"Question\",\"name\":\"Will this kit work on my specific Harley-Davidson or Indian Motorcycle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This kit fits all V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models, that use standard 10 mm, 12 mm, or 14 mm spark plug configurations. Confirm your spark plug size before ordering.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Performance Tool","offers":[{"title":"Default Title","offer_id":53035846828143,"sku":"117-1143","price":86.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/7a2d-5c0ec9bf2e659.jpg?v=1777529710","url":"https:\/\/vtwinbikers.com\/products\/performance-tool-leakdown-test-kit-w-case-117-1143","provider":"Vtwinbikers","version":"1.0","type":"link"}