{"title":"Suzuki DRZ400 Carburetors \u0026 Parts","description":"\u003cp dir=\"ltr\"\u003eIf you've searched for a DRZ400 fuel injection kit, you already know what the stock Mikuni BSR36 does wrong. Soft response off idle, a hesitation when you crack the throttle, and a mixture that only ever suits the elevation it was jetted for.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe usual fix is a 3x3 and a jet kit. It works — at one altitude, in one season, on one fuel. Ride the same bike from Moab to a 10,000-foot pass and you're back to where you started.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat you're actually looking for is airflow-referenced fuel metering.\u003c\/strong\u003e That's the thing fuel injection does that a fixed-jet carburetor can't: read the air and deliver fuel to match it.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA Lectron does the same job mechanically. A tapered metering rod sits directly in the airflow path and meters fuel against what the engine is pulling — not against a jet size chosen months ago. Air gets thin, fuel comes down with it. No sensors, no ECU, no fuel pump, no wiring harness, and nothing that fails a hundred miles from the trailhead.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFor a bike as often used for dual-sport and adventure riding as the DRZ400, that matters. The elevation range you'll cover in a single day is exactly the case a fixed-jet carburetor handles worst.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhat DRZ400 riders notice:\u003c\/strong\u003e the bog off idle gone, cleaner pull through the mid-range, and the same running quality at 9,000 feet as at sea level.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eFitment.\u003c\/strong\u003e These kits fit the carbureted DR-Z400, DR-Z400S, DR-Z400E, and DR-Z400SM. The stock airbox stays. If you've already done a 3x3 and a jet kit, the Lectron replaces both — pull the jets out of the equation entirely.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhich carburetor.\u003c\/strong\u003e The PRO-SERIES runs three fuel circuits: the metering rod, an adjustable Torque Jet for the low-to-mid range, and an adjustable Power Jet for the top. If you switch between pump gas and race fuel, or you've opened up the exhaust and airbox, that adjustment range is worth having. \u003c\/p\u003e","products":[{"product_id":"performance-upgrade-intake-manifold-boots","title":"Custom Intake Manifold Boots | Compatible with Lectron Carburetor Kits","description":"\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp data-start=\"267\" data-end=\"557\" class=\"\"\u003eWhen off-the-shelf doesn’t fit, our Custom Intake Boots bridge the gap between your Lectron carburetor and your engine. Designed for unique builds, vintage bikes, and engine swaps, these intake boots are custom-sized based on your specs to ensure proper sealing, alignment, and performance.\u003c\/p\u003e\n\u003cp data-start=\"559\" data-end=\"853\" class=\"\"\u003eEach boot is constructed from high-quality, fuel-resistant material and includes stainless steel clamps for a secure, leak-free fit. Whether you're retrofitting a modern Lectron into a legacy frame or need a specific offset or angle, this is the solution for tight fits and non-standard setups.\u003c\/p\u003e\n\u003cp data-start=\"855\" data-end=\"1014\" class=\"\"\u003e🏁 \u003cstrong data-start=\"858\" data-end=\"876\"\u003eWhat It’s For:\u003c\/strong\u003e\u003cbr data-start=\"876\" data-end=\"879\"\u003eBuilders, tuners, and riders using Lectron carbs on custom, vintage, or hard-to-fit engines who need a precisely sized intake solution or are looking for an upgraded intake boot from OEM. \u003c\/p\u003e\n\u003cp data-start=\"1016\" data-end=\"1041\" class=\"\"\u003e🔧 \u003cstrong data-start=\"1019\" data-end=\"1039\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1042\" data-end=\"1149\"\u003e\n\u003cli data-start=\"1042\" data-end=\"1070\" class=\"\"\u003e\n\u003cp data-start=\"1044\" data-end=\"1070\" class=\"\"\u003eCustom-Sized Intake Boot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1071\" data-end=\"1099\" class=\"\"\u003e\n\u003cp data-start=\"1073\" data-end=\"1099\" class=\"\"\u003e2 Stainless Steel Clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1100\" data-end=\"1149\" class=\"\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1149\" class=\"\"\u003eBuilt to match your carb size and engine spigot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Lectron Fuel Systems","offers":[{"title":"Default Title","offer_id":50447044182308,"sku":"4200-C","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Default Title #MWS Options 1","offer_id":50642748473636,"sku":"4200-C","price":189.99,"currency_code":"USD","in_stock":true},{"title":"Default Title #MWS Options 2","offer_id":51197834789156,"sku":"4200-C","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Default Title #MWS Options 3","offer_id":55780856430884,"sku":"4200-C","price":154.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/files\/step_manifold_1.png?v=1744307853"},{"product_id":"4t-motorcycle-carbs-proseries","title":"PRO SERIES Carburetor Kit for 4-Stroke | Precision Fuel Delivery, Peak Performance, Ultimate Simplicity (38mm-40mm)","description":"\u003cp class=\"\" data-end=\"694\" data-start=\"307\"\u003e\u003cstrong data-end=\"355\" data-start=\"307\"\u003eBuilt for performance. Tuned for simplicity.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"694\" data-start=\"307\"\u003e\u003cbr data-end=\"358\" data-start=\"355\"\u003eThe PRO SERIES 4-Stroke Carburetor delivers instant throttle response, crisp power, and easy installation — no jetting required. Designed specifically for modern 4-stroke engines, it includes a chrome-plated brass slide for ultra-smooth throttle pull, plus a throttle assembly and cable to simplify your setup.\u003c\/p\u003e\n\u003ch3 class=\"\" data-end=\"1443\" data-start=\"1421\"\u003e🏁 Who It's For:\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"1584\" data-start=\"1444\"\u003e4-stroke riders who want performance, simplicity, and smooth control — from trail to track, without the complexity of jetting or tuning. Common applications include; Suzuki DRZ 400, DR 650, Honda XR 650, CRF 250, CRF 450, Yamaha YZ250F, YZ450F, WR250F, WR450F, WR426F, KTM 530, KTM 525, KTM 520, KTM 250F, KTM 450F.\u003c\/p\u003e","brand":"Lectron Fuel Systems","offers":[{"title":"PRO-SERIES Carburetor Kit for 4-Stroke","offer_id":50551283155236,"sku":"1480-PRO","price":899.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke | Black Anodized","offer_id":50627207987492,"sku":"1480-PRO-A","price":899.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke | Custom Anodized","offer_id":50627208380708,"sku":"1480-PRO-AC","price":949.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 11","offer_id":50630850674980,"sku":"1480-PRO-A","price":899.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 12","offer_id":50632348827940,"sku":"1480-PRO-AC","price":949.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 13","offer_id":52320877314340,"sku":"1480-PRO","price":1049.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 14","offer_id":54261850145060,"sku":"1480-PRO-AC","price":1049.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 15","offer_id":54320179839268,"sku":"1480-PRO-A-E","price":949.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 16","offer_id":54327502045476,"sku":"1480-PRO-AC-E","price":999.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 17","offer_id":54475892883748,"sku":"1480-PRO-E","price":949.99,"currency_code":"USD","in_stock":true},{"title":"PRO-SERIES Carburetor Kit for 4-Stroke #MWS Options 18","offer_id":54480010379556,"sku":"1480-PRO-AC-E","price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/files\/4-stroke_thumbnail_side_angle_6.png?v=1741277071"},{"product_id":"ez-fit-kit","title":"EZ Fit Kit","description":"\u003cp\u003eCustom 4-Stroke Intake Manifold + Metering rod adjustment tool + (2) quick turn thumbscrews\u003c\/p\u003e","brand":"Lectron Fuel Systems","offers":[{"title":"Default Title","offer_id":50752198181156,"sku":"2611-EZF-K","price":109.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/files\/Brown_Modern_Bundling_Promo_Cosmetic_Instagram_Post_13.png?v=1750441031"},{"product_id":"silencer-packing-4-stroke","title":"Silencer Packing | 4-Stroke","description":"\u003cp\u003eFMF Performance Packing\u003c\/p\u003e","brand":"Lectron Fuel Systems","offers":[{"title":"Default Title","offer_id":50917745328420,"sku":"4520-4T","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/files\/FMF_4T_Packing.webp?v=1753988943"},{"product_id":"4-stroke-maintenance-bundle","title":"4 Stroke Maintenance Bundle","description":"\u003cp\u003eKit Includes: \u003cbr\u003e\u003cbr\u003e- 1 NGK Spark Plug\u003c\/p\u003e\n\u003cp\u003e- FMF Performance Packing\u003c\/p\u003e","brand":"Lectron Fuel Systems","offers":[{"title":"Default Title","offer_id":50917961433380,"sku":"4521-4T-K","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/files\/Untitleddesign_17.png?v=1753996151"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/8805\/6612\/collections\/Suzuki_DRZ400_Collections_Image.png?v=1789077776","url":"https:\/\/lectronfuelsystems.com\/collections\/drz400-carburetors-parts.oembed","provider":"Lectron Fuel Systems","version":"1.0","type":"link"}