{"product_id":"seaeagles-accelerator-pump-conversion-kit-for-holley-4150-50cc-fuel-pulse-rebuild-components","title":"SeaEagles Accelerator Pump Conversion Kit for Holley 4150 – 50cc Fuel Pulse, Rebuild Components","description":"\u003cp\u003e\u003cstrong\u003eSeaEagles 20-11 50cc Accelerator Pump Conversion Kit installs into Holley 4150 carburetors to add a positive fuel shot for crisper, more immediate throttle response.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis conversion kit is engineered to bring an accelerator-pump style fuel delivery to classic carbureted 50cc engines, particularly when adapting Holley 4150-style carburetors on small motorcycles, scooters or custom builds. The SeaEagles kit is precision-machined from durable materials and supplied with the components you need to convert or rebuild the accelerator pump assembly. That results in a quicker fuel metering pulse at throttle openings and a more predictable, controllable surge of power when you demand it.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit change throttle response during acceleration?\u003c\/h3\u003e\n\u003cp\u003eBy adding an accelerator pump mechanism the kit provides a short, metered fuel squirt at the instant the throttle is opened. This avoids the momentary lean sensation or hesitation common to carburetors without a pump, producing smoother roll-on acceleration and cleaner transitions in partial throttle conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDelivers a calibrated 50cc burst of fuel on throttle tip-in.\u003c\/li\u003e\n  \u003cli\u003eReduces flat spots and hesitation during sudden acceleration.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain richer mixture briefly for immediate engine response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included and how difficult is installation?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains the machined pump body parts, seals, metering components and hardware needed for a Holley 4150-style conversion. Installation is straightforward for anyone familiar with carburetor rebuilds: basic hand tools and careful adherence to the included instructions are all that’s required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete set of pump parts, seals and mounting hardware supplied.\u003c\/li\u003e\n  \u003cli\u003eFits into existing Holley 4150 housings with minimal modification.\u003c\/li\u003e\n  \u003cli\u003eInstallation time typically under an hour for experienced users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my engine or carburetor model?\u003c\/h3\u003e\n\u003cp\u003eThe SeaEagles 20-11 kit is made to adapt to Holley 4150-style carburetors and works across many 50cc carbureted applications. Verify compatibility by comparing your carburetor’s accelerator pump bore and mounting pattern to the Holley 4150 specification before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for Holley 4150-style carburetor housings and throttle assemblies.\u003c\/li\u003e\n  \u003cli\u003eSuitable for most 50cc motorcycle and scooter engines using compatible carbs.\u003c\/li\u003e\n  \u003cli\u003eCheck bore size and linkage fitment for a seamless match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance or tuning is required after fitting the conversion kit?\u003c\/h3\u003e\n\u003cp\u003eAfter installation you should check the pump stroke length, nozzle placement and mixture while the engine is operating to fine-tune the delivery. Periodic inspection of seals and linkage keeps the pump functional and leak-free.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjust pump stroke to prevent over-rich squirts or flooding.\u003c\/li\u003e\n  \u003cli\u003eVerify nozzle alignment and secure hose connections.\u003c\/li\u003e\n  \u003cli\u003eInspect O-rings and moving parts during regular carburetor service intervals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The SeaEagles 20-11 50cc Accelerator Pump Conversion Kit is aimed at vintage-bike restorers, small-engine tuners and custom builders who use Holley 4150-style carburetors on 50cc platforms. It’s ideal for riders wanting sharper throttle response without a full fuel-system redesign, and for mechanics seeking a durable, easy-to-install upgrade part. If you’re converting a carburetor to behave more responsively under acceleration or rebuilding an older accelerator pump on a 50cc application, this kit provides the precision parts and hardware needed to get predictable, repeatable results.\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: Does the kit fit all Holley 4150 carburetors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It is designed for Holley 4150-style housings but verify pump bore and mounting pattern on your carb before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install the conversion kit myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — basic carburetor rebuild experience and common hand tools are sufficient; follow the supplied instructions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SeaEagles","offers":[{"title":"Default Title","offer_id":55168529236311,"sku":"B0DKQ1GNVD","price":49.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/seaeagles-front-packaging-20-11-kit.jpg?v=1790406936","url":"https:\/\/britishgarage.co.uk\/products\/seaeagles-accelerator-pump-conversion-kit-for-holley-4150-50cc-fuel-pulse-rebuild-components","provider":"British Garage","version":"1.0","type":"link"}