Mikuni
Mikuni is a leading manufacturer of motorcycle carburetors, delivering high-performance fuel management solutions for a variety of bikes, from cruisers to sport and off-road models. Renowned for precision engineering, Mikuni carburetors improve throttle response, fuel efficiency and overall engine performance. Riders rely on Mikuni carburetors, such as VM Series round slide carburetors, TMX flat slide carburetors and HSR smoothbore kits to achieve optimized performance with dependable, precision-tuned results.
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Mikuni - 10020047 - VM Series Round Slide Carburetor - 20 mm
Mikuni
$165.00Mikuni - 10020047 - VM Series Round Slide Carburetor - 20 mmFeaturesRound slide configuration offers great flow characteristicsUse Mikuni jets and parts for best resultsMade in...$165.00 -
Mikuni - 10020046 - VM Series Round Slide Carburetor - 18 mm
Mikuni
$165.00Mikuni - 10020046 - VM Series Round Slide Carburetor - 18 mmFeaturesRound slide configuration offers great flow characteristicsUse Mikuni jets and parts for best resultsMade in JapanSpecsAir Jet2...$165.00 -
Out of stock
Mikuni - 10020045 - TM Series Flat Slide Performance Carburetor - 40 mm
Mikuni
$360.00Mikuni - 10020045 - TM Series Flat Slide Performance Carburetor - 40 mmFeaturesSignificant performance improvements over older round slide carbsGreat throttle response because of more precise fuel...$360.00 -
Out of stock
Mikuni - 10020044 - TM Series Flat Slide Performance Carburetor - 38 mm
Mikuni
$229.00Mikuni - 10020044 - TM Series Flat Slide Performance Carburetor - 38 mmFeaturesSignificant performance improvements over older round slide carbsGreat throttle response because of more precise fuel...$229.00 -
Out of stock
Mikuni - 10020043 - TM Series Flat Slide Performance Carburetor - 38 mm
Mikuni
$229.00Mikuni - 10020043 - TM Series Flat Slide Performance Carburetor - 38 mmFeaturesSignificant performance improvements over older round slide carbsGreat throttle response because of more precise fuel...$229.00 -
Out of stock
Mikuni - 10020042 - TMX Series Flat Slide Performance Carburetor - 38 mm
Mikuni
$229.00Mikuni - 10020042 - TMX Series Flat Slide Performance Carburetor - 38 mmFeaturesBaffled chamber enclosing main jet allows for improved performance on rough terrainTwin floats move independently to...$229.00 -
Out of stock
Mikuni - 10020041 - TMX Series Flat Slide Performance Carburetor - 38 mm
Mikuni
$229.00Mikuni - 10020041 - TMX Series Flat Slide Performance Carburetor - 38 mmFeaturesBaffled chamber enclosing main jet allows for improved performance on rough terrainTwin floats move independently to...$229.00 -
Out of stock
Mikuni - 10020040 - TM Series Flat Slide Performance Carburetor - 36 mm
Mikuni
$385.00Mikuni - 10020040 - TM Series Flat Slide Performance Carburetor - 36 mmFeaturesSignificant performance improvements over older round slide carbsGreat throttle response because of more precise fuel...$385.00 -
Out of stock
Mikuni - 10020039 - TMX Series Flat Slide Performance Carburetor - 35 mm
Mikuni
$229.00Mikuni - 10020039 - TMX Series Flat Slide Performance Carburetor - 35 mmFeaturesBaffled chamber enclosing main jet allows for improved performance on rough terrainTwin floats move independently to...$229.00 -
Out of stock
Mikuni - 10020038 - TM Series Flat Slide Performance Carburetor - 33 mm
Mikuni
$476.95Mikuni - 10020038 - TM Series Flat Slide Performance Carburetor - 33 mmFeaturesSignificant performance improvements over older round slide carbsGreat throttle response because of more precise fuel...$476.95 -
Mikuni - HS42/062-48K - Carburetor Flange Adapter - Black - 48 mm
Mikuni
$35.70Mikuni - HS42/062-48K - Carburetor Flange Adapter - Black - 48 mmFeaturesFor Spigot-type carburetorsOriginal straight-through designIncludes clampMade in JapanSpecsProduct NameFlange...$35.70 -
Mikuni - HS42/018-42K - Carburetor Flange Adapter - Black - 42 mm
Mikuni
$35.70Mikuni - HS42/018-42K - Carburetor Flange Adapter - Black - 42 mmFeaturesFor Spigot-type carburetorsOriginal straight-through designIncludes clampMade in JapanSpecsProduct NameFlange...$35.70 -
Mikuni - HS42/018-45K - Carburetor Flange Adapter - Black - 45 mm
Mikuni
$35.70Mikuni - HS42/018-45K - Carburetor Flange Adapter - Black - 45 mmFeaturesFor Spigot-type carburetorsOriginal straight-through designIncludes clampMade in...$35.70 -
Mikuni - VM40-200-1 - Carburetor Mounting Flange - 40mm
Mikuni
$35.70Mikuni - MVM40200 - Carburetor Mounting Flange - 40mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecsWidth40,00 mm (1,57'')Width Imperial40.00 mmMaterialRubberRiding StyleSnowWidth...$35.70 -
Mikuni - KHS-004 - Carburetor Mounting Flange - 38mm
Mikuni
$36.99Mikuni - MVM38200 - Carburetor Mounting Flange - 38mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecsRiding StyleOff-RoadRiding StyleUTVRiding StyleStreetProduct NameMounting...$36.99 -
Out of stock
Mikuni - VM36-200-1 - Carburetor Mounting Flange - 36mm-38mm
Mikuni
$35.70Mikuni - MVM36200 - Carburetor Mounting Flange - 36mm-38mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecsRiding StyleATVRiding StyleOff-RoadWidth Metric1.42'' - 1...$35.70 -
Mikuni - VM28-200-1 - Carburetor Mounting Flange - 28mm
Mikuni
$35.70Mikuni - MVM28200 - Carburetor Mounting Flange - 28mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecsWidth28,00 mm (1,10'')Riding StyleATVRiding StyleStreetRiding StyleSnowProduct...$35.70 -
Mikuni - J8-8DDY01-98 - Jet Needle - Leaner - HSR 42
Mikuni
$17.59Mikuni - J8-8DDY01-98 - Jet Needle - Leaner - HSR 42FeaturesGenuine Mikuni jet needlesMade in JapanSpecsProduct NameNeedle JetJet Size Metric2.98 mmModelLeanerTypeFor HSR 42Riding...$17.59 -
Mikuni - KHS-031 - Genuine Mikuni HS Carburetor Rebuild Kit - HSR48
Mikuni
$46.99Mikuni - KHS-031 - Genuine Mikuni HS Carburetor Rebuild Kit - HSR48 Features Includes top cover gasket, jet needle (with E-ring and washer), throttle valve seal, pilot air O-ring, fuel joint...$46.99 -
Mikuni - KHS-029 - Carburetor Top Cover with Logo - Chrome
Mikuni
$42.95Mikuni - KHS-029 - Carburetor Top Cover with Logo - ChromeFeaturesFor Mikuni HSR carburetorsGives a unique custom lookMade in JapanSpecsColor/FinishSilverDesignwith Mikuni...$42.95 -
Mikuni - KHS-028 - Carburetor Top Cover without Logo - Chrome
Mikuni
$36.95Mikuni - KHS-028 - Carburetor Top Cover without Logo - ChromeFeaturesFor Mikuni HSR carburetorsGives a unique custom lookMade in...$36.95 -
Mikuni - KHS-025 - Carburetor Jet Kit - HSR42
Mikuni
$144.95Mikuni - KHS-025 - Carburetor Jet Kit - HSR42FeaturesMade in JapanSpecsRiding StyleStreetColor/FinishGoldMaterialBrassProduct NameJet KitTypeCarburetorColor/FinishClearUnitsKitBase ColorGoldModelFor...$144.95 -
Mikuni - J8-8CFY02-98 - Jet Needle - Leaner - HSR 45/48
Mikuni
$17.59Mikuni - J8-8CFY02-98 - Jet Needle - Leaner - HSR 45/48FeaturesGenuine Mikuni jet needlesMade in JapanSpecsModelLeanerTypeFor HSR 48Base ColorSilverTypeFor HSR 45Product NameNeedle...$17.59 -
Mikuni - J8-8DDY01-97 - Jet Needle - Standard - HSR 42
Mikuni
$17.59Mikuni - J8-8DDY01-97 - Jet Needle - Standard - HSR 42FeaturesGenuine Mikuni jet needlesMade in JapanSpecsUnitsEachModelStandardJet Size Metric2.97 mmRiding StyleStreetColor/FinishSilverProduct...$17.59 -
Mikuni - J8-8CFY02-97 - Jet Needle - Standard - HSR 45/48
Mikuni
$17.59Mikuni - J8-8CFY02-97 - Jet Needle - Standard - HSR 45/48FeaturesGenuine Mikuni jet needlesMade in JapanSpecsModelStandardProduct NameNeedle JetColor/FinishSilverTypeFor HSR 48Base ColorSilverTypeFor...$17.59 -
Mikuni - J8-8DDY01-96 - Jet Needle - Richer - HSR 42
Mikuni
$17.59Mikuni - J8-8DDY01-96 - Jet Needle - Richer - HSR 42FeaturesGenuine Mikuni jet needlesMade in JapanSpecsBase ColorSilverModelRicherRiding StyleStreetUnitsEachJet Size Metric2.96 mmTypeFor HSR...$17.59 -
Mikuni - J8-8CFY02-96 - Jet Needle - Richer - HSR 45/48
Mikuni
$17.59Mikuni - J8-8CFY02-96 - Jet Needle - Richer - HSR 45/48FeaturesGenuine Mikuni jet needlesMade in JapanSpecsModelRicherUnitsEachColor/FinishSilverRiding StyleStreetTypeFor HSR 48Product NameNeedle...$17.59 -
Mikuni - J8-8DDY01-95 - Jet Needle - Richest - HSR 42
Mikuni
$17.59Mikuni - J8-8DDY01-95 - Jet Needle - Richest - HSR 42FeaturesGenuine Mikuni jet needlesMade in JapanSpecsColor/FinishSilverTypeFor HSR 42Product NameNeedle JetRiding StyleStreetJet Size Metric2.95...$17.59 -
Out of stock
Mikuni - J8-8CFY02-95 - Jet Needle - Richest - HSR 45/48
Mikuni
$17.59Mikuni - J8-8CFY02-95 - Jet Needle - Richest - HSR 45/48FeaturesGenuine Mikuni jet needlesMade in JapanSpecsBase ColorSilverJet Size Metric2.95 mmTypeFor HSR 45Color/FinishSilverModelRichestProduct...$17.59 -
Mikuni - HS42/012-300 - Replacement Air Filter - 3"
Mikuni
$128.95Mikuni - HS42/012-300 - Replacement Air Filter - 3"FeaturesWashable, reusable and pre-oiledMade in JapanSpecsProduct NameAir FilterColor/FinishBlackColor/FinishRedInside Diameter Metric76.00...$128.95 -
Mikuni - HS42/012 - Replacement Air Filter - 2-1/2"
Mikuni
$128.95Mikuni - HS42/012 - Replacement Air Filter - 2-1/2"FeaturesWashable, reusable and pre-oiledMade in JapanSpecsBase ColorBlackInside Diameter64,00 mm (2,50'')Filter Media MaterialCotton GauzeInside...$128.95 -
Mikuni - HS42/001-K - Air Box Adapter Kit
Mikuni
$46.95Mikuni - HS42/001-K - Air Box Adapter Kit Features Includes Mikuni-to-CV carburetor air box adapter with 3 mounting screws Made in Japan Specs Color/Finish Black Type Air...$46.95 -
Mikuni - 990-605-065 - Replacement Short Idle Screw Adjuster
Mikuni
$26.95Mikuni - 990-605-065 - Replacement Short Idle Screw AdjusterFeaturesMade in JapanSpecsColor/FinishWhiteUnitsEachModelFor HSR 42ModelFor HSR 45ModelMikuniBase ColorSilverRiding...$26.95 -
Mikuni - 990-662-002 - Choke Cable
Mikuni
$44.95Mikuni - 990-662-002 - Choke CableFeaturesFor use with Mikuni plastic nut, spring and brass plungerReplacement for HSR 42/45 Carb KitsSpecsBase ColorBlackProduct NameCableRiding...$44.95 -
Mikuni - 48-2 - Smoothbore Carburetor Kit - HSR48 - Natural
Mikuni
$550.95Mikuni - 48-2 - Smoothbore Carburetor Kit - HSR48 - NaturalFeaturesThese high-performance carburetors are ideal for realizing the maximum potential from custom and race enginesIncludes rubber...$550.95 -
Mikuni - 48-2P - Smoothbore Carburetor Kit - HSR48 - Polished
Mikuni
$670.00Mikuni - 48-2P - Smoothbore Carburetor Kit - HSR48 - PolishedFeaturesThese high-performance carburetors are ideal for realizing the maximum potential from custom and race enginesIncludes rubber...$670.00 -
Mikuni - HS42/062-45K - HSR Carburetor Flange Adapter - 45 mm
Mikuni
$35.70Mikuni - HS42/062-45K - HSR Carburetor Flange Adapter - 45 mmFeaturesThe mounting holes are oval so the flange can mount on any manifold using 70-75 mm on center holesRubber flange adapters fits...$35.70 -
Mikuni - HS42/062-42K - HSR Carburetor Flange Adapter - 42 mm
Mikuni
$35.70Mikuni - HS42/062-42K - HSR Carburetor Flange Adapter - 42 mmFeaturesThe mounting holes are oval so the flange can mount on any manifold using 70-75 mm on center holesRubber flange adapters fits...$35.70 -
Mikuni - KHS-035 - Carburetor Top Cover without Logo - Black
Mikuni
$34.99Mikuni - KHS-035 - Carburetor Top Cover without Logo - BlackFeaturesFor Mikuni HSR carburetorsGives a unique custom lookMade in JapanSpecsProduct NameCoverUnitsEachTypeCarburetorDesignwithout Mikuni...$34.99 -
Mikuni - KHS-045 - Carburetor Jet Kit - HSR 45
Mikuni
$124.99Mikuni - KHS-045 - Carburetor Jet Kit - HSR 45FeaturesMade in JapanSpecsRiding StyleStreetBase ColorGoldColor/FinishGoldMaterialBrassTypeCarburetorModelFor HSR...$124.99
Mikuni Performance Fuel Systems – Motorcycle Carburetors, Jets & Throttle Components
Mikuni has been a pioneer in the motorcycle industry, providing high-quality carburetors designed for maximum engine efficiency and smooth throttle control. With a range of products including VM Series round slide carburetors, TMX flat slide performance carburetors and HSR smoothbore carburetors, Mikuni carburetors are engineered for superior fuel atomization and consistent power delivery. These components are widely used on Harley-Davidson motorcycles, V-Twin cruisers and custom builds, making Mikuni carburetors a go-to choice for riders aiming for enhanced performance.
Beyond the core carburetor lines, Mikuni offers an extensive selection of replacement parts and tuning kits, such as needle and seat assemblies, jet needles, power jet kits and choke conversion kits. These genuine parts ensure precise calibration and long-term reliability, whether you are upgrading a stock setup or fine-tuning a performance build. Mikuni carburetors support a wide range of motorcycle applications, from Evolution Big Twin models to modern Twin Cam and XL 1200 sport bikes, ensuring optimal performance under all conditions.
For riders seeking high-precision tuning, Mikuni carburetors come with accessories like carburetor mounting flanges, air box adapters and fuel pump kits, enabling customization and easy installation. By combining advanced engineering with user-friendly design, Mikuni carburetors provide smoother acceleration, better fuel efficiency and consistent power across RPM ranges. Whether for custom motorcycle builds, street riding or track performance, Mikuni carburetors remain a trusted choice for enthusiasts looking to maximize engine potential.