{"product_id":"m6-carburetor-main-jet-nozzle-with-measuring-hole-size-range-from-55-to-150-for-derotto-phbn-phva-carburettor-tuning-and-modification-kit","title":"M6 carburetor main jet nozzle with measuring hole size range from #55 to #150 for Derotto PHBN PHVA carburettor tuning and modification kit","description":"\u003ch1\u003eM6 Main Jet Nozzle for Derotto PHBN PHVA Carburettor Tuning #55 to #150\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/0fce499c-198f-4a36-8928-7be5f518ad20.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis M6 threaded main jet is a core component for fuel system tuning and maintenance on Derotto PHBN and PHVA series carburettors. It serves as a direct replacement part for worn or damaged jets and is essential for performance enthusiasts and mechanics undertaking carburettor modification. The product's value lies in its precise manufacturing, offering a specific fuel metering hole size within a broad range. This allows for accurate adjustment of the air-fuel mixture in the carburettor's main circuit, which directly influences engine performance, throttle response, and efficiency at medium to high engine speeds. By providing a single, selected jet size, it enables targeted tuning or repair.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/1003e8ca-abaf-4730-8a26-87e5cdc38482.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis carburettor jet is defined by its thread specification, size range, and intended application, offering a practical solution for fuel system work.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe nozzle is constructed from brass, a traditional and reliable material for fuel system components. Brass offers good resistance to corrosion from fuel and ethanol blends, ensuring long-term service life without degrading. Its machinability allows for the creation of a very precise and consistent fuel metering hole, which is critical for accurate tuning. The construction focuses on providing a reliable, single-purpose component that performs its fuel metering function without unnecessary complexity.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eThe key specification is the M6 thread, which defines its physical connection to the carburettor body. This standard thread size ensures it fits correctly into the main jet seat of compatible Derotto carburettor models. The primary functional specification is the jet's size, denoted by a number (e.g., #65, #110) which corresponds to the diameter of the fuel metering hole. The available range spans from #55 to #150, covering a wide spectrum of tuning needs from lean to rich mixture settings. Selecting the correct size is crucial for matching the jet to your engine's modified state or stock requirements.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/273f69be-1448-4d14-949f-e2dfed74d32a.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis component has clear applications in both repair and performance tuning contexts, serving as a critical link in the fuel delivery system.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor professional mechanics, tuners, or enthusiasts involved in motorsport, karting, or motorcycle maintenance, this jet is a fundamental tuning tool. It allows for precise calibration of the carburettor after engine modifications such as intake or exhaust upgrades, where stock fuel settings become inadequate. The wide size range enables fine-tuning for different altitudes, temperatures, or specific race track conditions. It is a consumable part in a tuner's kit, used to dial in optimal performance and ensure the engine runs at its best under competitive conditions.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eFor the home mechanic or vehicle owner, this jet serves primarily as a replacement part for a carburettor that is running poorly due to a clogged or worn main jet. Symptoms like poor acceleration, spluttering at high throttle, or general poor performance can often be traced to this component. Having the correct size on hand allows for a straightforward repair that restores proper fuel flow. It also enables basic tuning for older vehicles where factory specifications might need slight adjustment for modern fuel blends or to compensate for engine wear over time.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/5c7bf283-56ca-4a08-9450-e29c84ce0d24.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this product is rooted in its specificity, quality of manufacture for its purpose, and the practical benefits it delivers to the user.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eAs a brass component, the jet is durable and can be cleaned and reused multiple times if not physically damaged. Simple soaking in carburettor cleaner can remove varnish and deposits, restoring its function. This reusability adds to its long-term value. The low-maintenance aspect comes from its simple, solid construction; there are no moving parts to wear out, only the critical fuel passageway that remains consistent over time with proper care.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eChoosing this specific jet is justified by its confirmed compatibility with Derotto PHBN and PHVA carburettors and the verified M6 thread specification, ensuring it fits correctly. The comprehensive size range means you can source the exact jet needed for your project from a single product line. The focus on being a single, factual component without invented claims means you are buying a known quantity—a fuel jet of a stated size—which is essential for successful mechanical work where guesswork can lead to poor results or engine damage.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/7b40efc9-4627-44f7-b9bc-9e02983709e6.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/9e1fdf89-670f-4865-b068-213ce48b5460.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass M6 carburettor main jet nozzle for Derotto PHBN PHVA with size marking\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/1180\/2025-10-02\/original-image\/dcb302f8-fb56-4b0f-b896-736a66492cb8.webp\"\u003e\u003c\/div\u003e","brand":"4hz513-9c","offers":[{"title":"Size 82","offer_id":54165530018134,"sku":"CJYD195054412LO","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 60","offer_id":54165530050902,"sku":"CJYD195054403CX","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 78","offer_id":54165530083670,"sku":"CJYD195054410JQ","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 145","offer_id":54165530116438,"sku":"CJYD195054431EV","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 108","offer_id":54165530149206,"sku":"CJYD195054422VE","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 105","offer_id":54165530181974,"sku":"CJYD195054421UF","price":9.88,"currency_code":"GBP","in_stock":true},{"title":"Size 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