{"product_id":"jims-manual-compression-release-valves-10mm-x-1-0mm-for-big-twin","title":"Jims Manual Compression Release Valves 10mm x 1.0mm for Big Twin","description":"\u003cp\u003eUpgrade your high-compression Harley-Davidson Big Twin engine with the Jims 10mm x 1.0mm manual compression release valves, engineered to significantly ease starting and reduce strain on your starter motor. These essential components allow you to temporarily lower the effective compression, making it much simpler for your engine to turn over, especially in big-inch, high-performance setups.\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eDesigned for motorcycle enthusiasts running powerful, high-compression Big Twin motors, these Jims manual compression release valves are a game-changer for starting reliability. By installing these 10mm x 1.0mm self-sealing valves directly into each cylinder head, you can manually relieve cylinder pressure during startup. This crucial function not only protects your starter from excessive wear and tear but also preserves your battery's life, ensuring a smoother, more consistent starting experience every time. Crafted with precision in the USA, these valves are built for durability and reliable performance, seamlessly integrating into your engine's existing architecture. Their straightforward, drill-and-tap installation process means you can enhance your motorcycle's starting capabilities without extensive modifications, making them a practical and effective upgrade for any Big Twin owner.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEffortless Starting:\u003c\/strong\u003e Manually releases cylinder pressure, making it significantly easier to turn over high-compression, big-inch motorcycle engines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReduces Starter Strain:\u003c\/strong\u003e Protects your starter motor and electrical system from excessive load, prolonging component lifespan and preventing costly repairs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSelf-Sealing Design:\u003c\/strong\u003e Engineered for reliability, these valves provide a secure, leak-free seal once installed, maintaining optimal engine performance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision Engineering:\u003c\/strong\u003e Specifically designed with a 10 mm x 1.0 mm thread for precise fitment and effective compression relief in compatible cylinder heads.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBroad Big Twin Compatibility:\u003c\/strong\u003e Confirmed to fit all Harley-Davidson Big Twin models, offering a wide range of application for performance upgrades.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProudly Made in the USA:\u003c\/strong\u003e Manufactured with high-quality materials and craftsmanship in the United States, ensuring exceptional durability and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eProduct Type: Manual Compression Release Valves\u003c\/li\u003e\n    \u003cli\u003eThread Size: 10 mm x 1.0 mm\u003c\/li\u003e\n    \u003cli\u003eFitment: All Harley-Davidson Big Twin models\u003c\/li\u003e\n    \u003cli\u003eCountry of Origin: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant to Know\u003c\/h2\u003e\n\u003cp\u003eInstallation of these compression release valves requires drilling and tapping each cylinder head. Necessary tools, including a drill bit and a 10 mm x 1.0 mm tap, are not included with this product and must be acquired separately.\u003c\/p\u003e","brand":"Jims","offers":[{"title":"Default Title","offer_id":63702517088586,"sku":"DS196400","price":2157.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/fbd3c0a212b71b1b65740000616674cd.webp?v=1790489420","url":"https:\/\/partsdenmark.se\/products\/jims-manual-compression-release-valves-10mm-x-1-0mm-for-big-twin","provider":"Parts Denmark","version":"1.0","type":"link"}