
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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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 -
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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$35.70 -
Out of stock
Mikuni - VM40-200-1 - Carburetor Mounting Flange - 40mm
Mikuni
$35.70Mikuni - MVM40200 - Carburetor Mounting Flange - 40mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecs$35.70 -
Out of stock
Mikuni - KHS-004 - Carburetor Mounting Flange - 38mm
Mikuni
$36.99Mikuni - MVM38200 - Carburetor Mounting Flange - 38mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecs$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 JapanSpecs$35.70 -
Mikuni - VM28-200-1 - Carburetor Mounting Flange - 28mm
Mikuni
$35.70Mikuni - MVM28200 - Carburetor Mounting Flange - 28mmFeaturesGreat replacement flangeIncludes clampMade in JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$36.95 -
Mikuni - KHS-025 - Carburetor Jet Kit - HSR42
Mikuni
$144.95Mikuni - KHS-025 - Carburetor Jet Kit - HSR42FeaturesMade in JapanSpecsRiding StyleStreet<$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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 JapanSpecs$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$46.95 -
Mikuni - 990-605-065 - Replacement Short Idle Screw Adjuster
Mikuni
$26.95Mikuni - 990-605-065 - Replacement Short Idle Screw AdjusterFeaturesMade in JapanSpecsColor/FinishWhite<$26.95 -
Out of stock
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 KitsSpecs$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 -
Out of stock
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 -
Out of stock
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 JapanSpecs$34.99 -
Mikuni - KHS-045 - Carburetor Jet Kit - HSR 45
Mikuni
$124.99Mikuni - KHS-045 - Carburetor Jet Kit - HSR 45FeaturesMade in JapanSpecsRiding StyleStreet$124.99 -
Mikuni - KHS-048 - Carburetor Jet Kit - HSR 48
Mikuni
$124.99Mikuni - KHS-048 - Carburetor Jet Kit - HSR 48FeaturesMade in JapanSpecsModelFor HSR 48$124.99 -
Mikuni - KHS-034 - Main Jet Extension Kit
Mikuni
$34.99Mikuni - KHS-034 - Main Jet Extension KitFeaturesCompletely submerges main jet within extender, eliminating chance of air bubbles getting throughIncreases amount of fuel to float bowlMade in...$34.99 -
Out of stock
Mikuni - 859-32027 - Replacement Carburetor Float
Mikuni
$27.90Mikuni - 859-32027 - Replacement Carburetor FloatFeaturesGenuine Mikuni replacement float for the HSR42, HSR45 and HSR48 carburetorsSpecs$27.90 -
Mikuni - J8-8CFY15-96 - Needle Jet - HSR 45/48
Mikuni
$17.59Mikuni - J8-8CFY15-96 - Needle Jet - HSR 45/48FeaturesMade in JapanSpecsJet Size96$17.59 -
Mikuni - 45-2 - Smoothbore Carburetor Total Kit - HSR45 - Evolution Big Twin
Mikuni
$955.95Mikuni - 45-2 - Smoothbore Carburetor Total Kit - HSR45 - Evolution Big TwinFeaturesIncludes a performance intake manifold, rubber flange, carburetor, high-flow K&N filter, air cleaner cover,...$955.95 -
Mikuni - 45-4 - Smoothbore Carburetor Total Kit - HSR45 - Twin Cam
Mikuni
$955.95Mikuni - 45-4 - Smoothbore Carburetor Total Kit - HSR45 - Twin CamFeaturesIncludes a performance intake manifold, rubber flange, carburetor, high-flow K&N filter, air cleaner cover, breather kit and...$955.95 -
Out of stock
Mikuni - 42-8 - Smoothbore Carburetor Total Kit - HSR42 - Evolution Big Twin
Mikuni
$972.95Mikuni - 42-8 - Smoothbore Carburetor Total Kit - HSR42 - Evolution Big TwinFeaturesIncludes a performance intake manifold, rubber flange, carburetor, high-flow K&N filter, air cleaner cover,...$972.95 -
Out of stock
Mikuni - 42-7 - Smoothbore Carburetor Easy Kit - HSR42 - Evolution Big Twin
Mikuni
$596.95Mikuni - 42-7 - Smoothbore Carburetor Easy Kit - HSR42 - Evolution Big TwinFeaturesAccepts the original Harley-Davidson intake manifold, choke cable, air cleaner and throttle cablesKits include the...$596.95 -
Out of stock
Mikuni - 42-19 - Smoothbore Carburetor Total Kit - HSR42 - Twin Cam
Mikuni
$972.95Mikuni - 42-19 - Smoothbore Carburetor Total Kit - HSR42 - Twin CamFeaturesIncludes a performance intake manifold, rubber flange, carburetor, high-flow K&N filter, air cleaner cover, breather kit and...$972.95
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.