{"product_id":"briggs-stratton-691428-main-jet-carburetor-part","title":"Briggs Stratton 691428 Main Jet Carburetor Part","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BRIGGS STRATTON 691428 is a main jet designed for use in small engine carburetors. The main jet is a precision-metered orifice that controls the fuel-to-air ratio at mid to high throttle positions, directly affecting engine performance and combustion efficiency. This OEM-specification component is installed by small engine technicians and outdoor power equipment service professionals during carburetor rebuilds or fuel system repairs. Proper fuel metering depends on an undamaged, correctly sized jet, making this a critical replacement part when the original shows wear, varnish buildup, or damage from stale fuel.\u003c\/p\u003e\u003cp\u003eThis main jet is suited for residential and light commercial outdoor power equipment applications. It is a common service part used during carburetor cleaning, overhaul, or replacement on lawn and garden equipment such as walk-behind mowers, riding mowers, and similar small-engine-powered machines that use BRIGGS STRATTON engines and matching carburetor assemblies. Technicians typically replace the main jet when fuel delivery issues or rough running cannot be resolved through cleaning alone.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOEM-specification main jet for precise fuel metering in BRIGGS STRATTON carburetors\u003c\/li\u003e\n\u003cli\u003eControls fuel-to-air mixture at mid to high throttle range\u003c\/li\u003e\n\u003cli\u003eTargeted replacement for carburetors affected by varnish deposits or jet wear\u003c\/li\u003e\n\u003cli\u003eEngineered to restore factory fuel delivery performance\u003c\/li\u003e\n\u003cli\u003eCompact, direct-fit design for efficient carburetor service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement main jet for BRIGGS STRATTON small engine carburetors used in lawn and garden power equipment.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMain jet replacement is performed by qualified small engine technicians during carburetor service. Shut off the fuel supply valve and allow the engine to cool completely before disassembling the carburetor. Use the correct screwdriver or jet tool to avoid stripping the soft brass threads on the jet. Follow applicable small engine service procedures and local regulations for handling and disposing of fuel system components.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type\u003c\/strong\u003e: Main Jet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Small Engine Carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BRIGGS STRATTON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 691428\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BRIGGS \u0026 STRATTON","offers":[{"title":"Default Title","offer_id":51207370539314,"sku":"691428","price":30.84,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/briggs-stratton-691428-main-jet-carburetor-part","provider":"Voomi Supply","version":"1.0","type":"link"}