{"product_id":"biolion-carburetor-kit-for-125-140cc-300e-450e-500e-550e-lawnmower-engines-complete-repair-kit-with-air-filter-primer-bulb","title":"BioLion Carburetor Kit for 125–140cc 300E\/450E\/500E\/550E Lawnmower Engines — Complete Repair Kit with Air Filter \u0026 Primer Bulb","description":"\u003cp\u003e\u003cstrong\u003eThe BioLion 799583 carburetor kit is a complete replacement assembly designed to restore fueling, starting, and acceleration for 125cc–140cc 300E\/450E\/500E\/550E series lawnmower engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis all-in-one repair kit includes the replacement carburetor plus gaskets, clamps, fuel lines, air filter and cover, primer bulb, spark plug and mounting parts so you can swap a worn or damaged unit quickly without sourcing multiple pieces. It fits engines using part numbers like 08P502 and 09P602 and replaces several OEM references (599583, 595656, 590556, 591979, 593261 listed by common notation). The kit is intended to alleviate common symptoms such as fuel leakage, hard starting, poor throttle response and exhaust smoke by renewing the fuel delivery components.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this kit fix starting and running problems?\u003c\/h3\u003e\n\u003cp\u003eThe carburetor is the component that meters air and fuel to the engine. Replacing a fouled or leaking carburetor and the associated seals restores correct fuel flow and mixture, improving spark plug combustion and throttle response.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComprehensive replacement carburetor calibrated for 125cc–140cc small engines\u003c\/li\u003e\n  \u003cli\u003eIncludes primer bulb to help quick cold starts\u003c\/li\u003e\n  \u003cli\u003eNew gaskets and fuel lines prevent leaks and air intrusion\u003c\/li\u003e\n  \u003cli\u003eSpark plug included to ensure fresh ignition timing after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich models and part numbers are compatible with this assembly?\u003c\/h3\u003e\n\u003cp\u003eThis kit is built to fit 300E, 450E, 500E and 550E series small engines and is compatible with common OEM references for similar displacement units. Before ordering, match your engine’s model and stamped part number to ensure proper fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 125cc and 140cc lawnmower engines in 300E\/450E\/500E\/550E families\u003c\/li\u003e\n  \u003cli\u003eCompatible replacements for 08P502, 09P602 and equivalent OEM numbers\u003c\/li\u003e\n  \u003cli\u003eReplaces carburetor part numbers: 799583, 595656, 590556, 591979, 593261\u003c\/li\u003e\n  \u003cli\u003eIncluded air filter replace# 799579 and cover replace# 595660 for matched service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and how does that save time?\u003c\/h3\u003e\n\u003cp\u003eThe kit is packaged as a single service set so you don’t need to hunt down small parts during the repair. Everything required to complete a typical carburetor swap is included, cutting shop time and lowering the risk of missing critical pieces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 carburetor, 3 gaskets, 2 clamps and 2 fuel lines for proper sealing\u003c\/li\u003e\n  \u003cli\u003e1 air filter and cover matched to the carburetor inlet\u003c\/li\u003e\n  \u003cli\u003e1 primer bulb and 1 spark plug supplied for improved starting and ignition\u003c\/li\u003e\n  \u003cli\u003eHardware and fittings included for a one-stop replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult for someone doing yard equipment repairs?\u003c\/h3\u003e\n\u003cp\u003eBasic mechanical ability and a few hand tools are usually sufficient to install the kit. The parts are arranged for direct swap; removing the old carburetor, fitting new gaskets and connections, and adjusting the throttle linkages completes the job in most home-garage situations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple bolt-on installation with standard hand tools\u003c\/li\u003e\n  \u003cli\u003eReplacing fuel lines and clamps minimizes future leaks\u003c\/li\u003e\n  \u003cli\u003ePrimer bulb and new spark plug reduce troubleshooting after install\u003c\/li\u003e\n  \u003cli\u003eContact BioLion support if you need fitment guidance or troubleshooting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This BioLion 799583 carburetor kit is aimed at homeowners, landscapers and small-engine technicians who need a dependable service replacement for 125cc–140cc 300E\/450E\/500E\/550E series lawnmower engines. It’s ideal when the engine shows fuel-related symptoms or when preventative maintenance calls for renewing the carburetor and intake components in a single, cost-effective package.\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 this carburetor fit my 140cc 09P602 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the kit lists compatibility with 09P602 and similar 125–140cc 300E\/450E\/500E\/550E engines; verify your stamped part number first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are installation parts included for a complete replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — gaskets, fuel lines, clamps, air filter and cover, primer bulb and a spark plug are all included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BioLion","offers":[{"title":"Default Title","offer_id":48085373190302,"sku":"B0F9WYBQK1","price":34.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/biolion-carburetor-front-view_2b992d25-4f69-4593-90cf-8be613c82862.jpg?v=1785870434","url":"https:\/\/northtrailauto.ca\/products\/biolion-carburetor-kit-for-125-140cc-300e-450e-500e-550e-lawnmower-engines-complete-repair-kit-with-air-filter-primer-bulb","provider":"North Trail Auto","version":"1.0","type":"link"}