Carburetor Parts

The original EZ-Just® mixture screw for Harley CV carburetors adjusts the air idle mixture. Easily tune and adjust your idle mixture without burning your hands or fumbling with a screwdriver. CV Performance has exclusively provided Harley riders with the EZ-Just® for over 30 years. Special through - only $19.95 --> There is only one original EZ-Just®Beware of cheap import knock offs! Read more below.  Compatible with all Harley CV style carburetors and replaces the stock mixture...

Introducing our exclusive Basic Renewal Kit for 92-06 Harley CV style carburetors. The kit contains the most commonly replaced quality seals needed to renew your Harley CV carburetor. For use with all 1992-2006* Big Twin and XL models using the late model Harley CV 40 carburetor. SALE - only $17.95 CVP Accelerator Pump Diaphragm- Superior material outlasts many other diaphragms.- Resists the harmful effects of modern pump gas.- Replaces OEM 27361-76A Float needle...

Complete vacuum slide assembly for Harley CV carburetors. Replaces original H-D p/n #27585-88. Slide replacement is recommended when the diaphragm eventually becomes pinched or torn, or if the vacuum port hole has been modified by drilling 1/8" or larger causing driveability problems.  Also available in a premium version slide - tumble polished and a heavy duty diaphragm. Fits all Harley CV 40 carburetors: Big Twin 1990-2006 or Sportster 1989-2006. Not for use on other Keihin CV...

CVP's exclusive Velocity Emulsion Tube is a direct replacement for the stock Harley CV carburetor emulsion jet holder. Specially designed to provide a fine vortex pattern atomized mist for an optimal air/fuel mixture without impacting mileage. Unlike some aftermarket tubes, the Velocity Tube accepts both H-D factory and OEM replacement main jets for ease of tuning. Available for all 1989-2006 Big Twin, Twin Cam, and Sportster models using Harley CV style carburetors. Direct replacement for H-D...

Introducing our exclusive Basic Renewal Kit for early model 89-91 Harley CV style carburetors. The kit contains the most commonly replaced quality seals needed to renew your Harley CV carburetor. For use with 1990-1991* FL/FX Big Twins and 1989-1991 XL models using the early model Harley CV 40 carburetor with 2-piece bowl seals (see photo). Spring Special - only $17.95 CVP Accelerator Pump Diaphragm- Superior material outlasts many other diaphragms.- Resists the harmful effects...

Precision American made main jets for Harley CV carburetors. Sizes #170, 175, 180, 185, 190, 195, and 200.CVP jet quality exceeds OEM and imported carburetor jets. Fits stock style jet holders / emulsion tubes only*Important Note: Main jets supplied by CVP are sized to original OE specifications from H-D and Keihin. If using with a DynoJet kit or various aftermarket jet holders (emulsion tube) the threads will not match. Always use an original holder/tube or the CVP emulsion tube...

Precision American made pilot jets for Harley CV and CVK carburetors. Sizes #42, 44, 45, 46, 48, and 50.CVP jet quality exceed OEM and Keihin (Harley) carburetor jets.  Not for use or sale in California SIZE Original Harley P/N Keihin P/N #42 27171-89 N424-25B-42 #44   N424-25B-44 #45 27170-89 N424-25B-45 #46   N424-25B-46 #48 27165-90 N424-25B-48 #50   N424-25B-50 Note: CVP jets are exclusively made by CV Performance in the United States. We do not import or use...

Introducing our exclusive Premium Rebuild Kit for Harley CV Carburetors. The kit contains all of the vital seals and gaskets needed to rebuild your Harley CV carburetor. Our kit contains only premium quality seals and gaskets that exceed original factory standards. For use with all 1990-2006 Big Twin or 1989-2006 XL models using the Harley CV 40 carburetor. Replaces factory rebuild kit 27006-88 Unlike inferior mass produced kits and imports sold everywhere else, our...

Replacement packing for use with the EZ-Just mixture screw or stock mixture screw. Includes the Viton® o-ring, washer, and spring that can be lost when removing the original mixture screw. These repack parts are a CVP exclusive and not available from the factory. Fits Harley Keihin 'Butterfly' and CV style carburetors 1981-2006. This packing kit also fits many CVK carburetors including: CVK40, CVK36, and CVK34 carburetors.* Note that in areas now using Ethanol as a 10% fuel additive, replacing...

Designed to cure hesitation and deliver even throttle response, the CVP Velocity Needle is a direct replacement for stock Harley slide needles. CVP's custom needle outperforms factory needles while eliminating trial and error tuning. No clips or shims to mess with, simply install and ride! CNC machined from aircraft quality billet aluminum for precision and durability. Available for all Harley constant velocity (CV) carburetors on 1989-2006 Big Twin and Sportster models. Not for use or sale in...

4-Sided Float fuel valve w/clip for 1989-2006 Harley CV carburetors. Replacement for OEM p/n 27886-78A. Worn float valves are the most common cause of bowl overflows and engine flooding. Refer to the float level setting diagram when installing. The setting must be adjusted since some float needle valves may be longer or shorter than others (factory made 2 versions, same number). This item is the 4-sided version however both 3 and 4 sided float valves are stated to work by the factory. All...

CVP's exclusive Harley Accelerator Pump Diaphragm replaces worn or cracked diaphragms on Harley CV and Harley Keihin butterfly carburetors. Perfect fit, no more stretching or misaligned seals. Greater resistance to mild fuel additive exposure commonly found in pump gas. Will outlast many standard diaphragms when minimal Ethanol* enhanced fuel is occasionally used. Will fit on both stock Harley carburetors and S&S Super E or G.--> Sold individually, diaphragm only. Replaces Harley p/n...

The CVP Fuel Max Inlet ElbowTM replaces the stock fuel inlet on Harley CV40, and Harley Keihin butterfly carburetors. Increases flow by up to 30% – 40% when used with 5/16" fuel line. Single piece brass design will not break or leak like stock plastic-end replacement fuel elbows. Compatible with all Harley CV (constant velocity) and Harley Keihin butterfly style carburetors 1981-2006. Includes a replacement stainless steel hose clamp.--> JULY SALE - only $17.95 Instructions on replacing the...

Premium vacuum slide assembly for Harley CV carburetors. Tumble polished body and heavy duty rubber diaphragm for added durability. Replaces original Harley OE p/n #27585-88.  Our Premium Slide is tumble polished and uses a heavy duty diaphragm. Also available in our standard Harley Vacuum Slide Assembly HERE Fits all Harley CV 40 carburetors: Big Twin 1990-2006 or Sportster 1989-2006. Not for use on other Keihin CV carburetors. * We personally inspect every slide diaphragm...

CVP's exclusive Premium Intake Manifold Boot Seal for Harley CV carburetors.  Boot seal mates the CV40 carburetor spigot end to the stock slip-fit Harley manifold. Finally a manifold boot seal that seals correctly! Improved fit for a positive seal on all Harley models using slip fit (spigot) CV carburetors. Greater resistance against drying and cracking. Firmly provides a tight leak-free seal to cure vacuum leaks. Replaces the old factory boot seal between the carburetor and...

A direct replacement for the factory discontinued Harley N65C needle. The classic N65C needle was originally fitted to the first CV carburetor on 1988 Harley-Davidson Sportsters that lacked an accelerator pump, therefore requiring a needle with a richer profile just off idle to overcome the lean stumble. For years tuners and techs have used the N65C needle to custom tune all model Harley CV carburetors to deliver the optimal amount of fuel just off idle, smooth acceleration, and eliminate...

-->Accelerator Pump Boot Seal for Harley carburetors. Prevents dust and debris from collecting inside the accelerator pump while retaining any silicone lube used on the pump shaft. Replaces Harley OE p/n 237311-76 and 237311-76A found on 1989-2006 Harley CV40 carburetors and and Harley butterfly carburetors with an accelerator pump. Sold each one per package. Will not fit on non-Harley model carburetors. Image may differ from the actual product. Aftermarket boot cover seal, photos may...

Harley brass fuel inlet elbow replaces the stock fuel inlet on Harley CV 40mm carburetors and earlier Harley Keihin butterfly carburetors. Direct replacement for OE p/n 27371-76A. Accepts stock size 1/4" fuel hose while improving flow by up to 20% when compared to stock inlet fittings. Our high quality fuel inlet is NOT a repurposed plumbing fitting commonly sold elsewhere (eBay etc). Compatible with all Harley CV40 and Harley Keihin butterfly style...

Complete Float Bowl Assembly for Harley CV Carburetors. Replaces original carb float bowl H-D p/n 27159-92 on 1992-2006* Harley models only. Ideal replacement for a damaged or worn float bowl assembly on your 40mm carb, or to improve weak accelerator pump fuel delivery. Unlike any other Harley carb float bowl assembly on the market, our exclusive assembly comes complete with high quality CV Performance® upgrades found no where else. Backorder / Waiting List - ETA 9/21 - 9/25 Exclusive Features...

CVP's stainless steel idle speed screw for Harley CV and Keihin butterfly style carburetors. Now adjust your idle speed by hand without the need for a screwdriver. High quality single piece stainless steel construction guarantees durability and resistance to corrosion. Large easy to locate slotted head provided for fine tuning when a longer reach is still needed. Also includes stainless steel spring. Compatible with all Harley CV40 and Keihin butterfly style carburetors 1981-2006.* CVP Idle...

5/16 Fuel line for use with high flow inlets and fuel valves.  Made in the USA 5/16" I.D. x 9/16" O.D. Black neoprene line is reinforced with a high strength rayon mesh Resists fuel additives and short term use of pump gas with E10 Ethanol* Maximum PSI of 200 with a burst pressure of 450 PSI Use with CVP Fuel Inlet or other brass/steel type inlet elbows**  Length provided to fit all Harley carbureted models NOT for use on fuel injected models. Ideal for high volume...

Cometic Manifold Intake Seal Manifold intake seal installs between each head intake port and the carburetor manifold. Genuine Cometic Seal, Made in the USA! Provides a positive seal for all Harley intake manifolds. Resists drying and cracking. Replaces HD# 26995-86B compression seal between the head and carburetor manifold. Sold Each, the purchase of 2 seals is required per installation on V-twins. Fits: Big Twin Evolution 1989-1999, Twin Cam 1999-2006, and Sportster 1988-2006.Stock carburetor...

Chrome plated CV Carburetor top cover with chrome mounting screws. Fits Big Twin 1990/Later & Sportster 1988/Later. Replaces HD# 27040-88 & 27129-88 Limited Time - only $18.95 Imported by MID-USA® ...

Accelerator pump O-Rings for 1976-2006 Harley carburetors. Replaces OE p/n 27360-76. Includes 2 flat side O-Rings (also called U-Rings). For use with 1976-2006 Big Twins and XL Sportster models using the Harley CV 40 or early "butterfly" style carburetor. Special - only $2.95 Includes 2 O-Rings. Some models use a single o-ring while newer models use two seals. This kit will cover both versions.  This kit is supplied as an OEM style product (no instructions). Please...

The all new CVP Choke Bracket. Made from polished stainless steel, our choke bracket moves the choke knob conveniently to the top of the carburetor for that custom look. Made from durable polished stainless steel and includes all stainless steel mounting hardware to stand up to the elements. Choke cable assembly not included. Fits all 1990-2006 Big Twin and Sportster models using CV style carburetors with aftermarket air cleaner assembly only. Requires aftermarket air cleaner assembly or...

Carburetor bowl gasket seal for late model 1992-2006 Harley CV style carburetors. Replaces OE p/n 27577-92. For use with 1992-2006* Big Twins and XL Sportster models using the late model Harley CV 40. Special - only $4.95 Bowl Gasket Seal *- Quality seal replaces dried or cracked bowl seal.- Replaces p/n 27577-92* *For use on 1992-2006 Harley CV carburetors only that uses a single piece seal.  Bowl seal will NOT fit early version 1989-1991 models. For early...

Carburetor bowl gasket seal for early model 1989-91 Harley CV style carburetors. Replaces OE p/n 27577-88. For use with 1990-1991* FL/FX Big Twins and 1989-1991 XL models using the early model Harley CV 40. Special - only $4.95 Bowl Gasket Seal *- Quality seal replaces dried or cracked bowl seal.- Replaces p/n 27577-88* *For use on early 1989-91 Harley CV carburetors only that uses a separate o-ring around the accelerator pump nozzle (not included). Bowl seal will NOT...

Harley Float Kit for 1992-2006 Harley CV carburetors. Complete kit includes the float and a new replacement mounting pin and float valve. Replacement for OEM p/n 27576-92. Will not fit in pre-92 carburetors.  Includes: New 92-06 Float 27576-92Float Pin 27575-88AFloat Valve 27886-78A Professional installation recommended.  Refer to the float level setting diagram when installing. The setting must be adjusted which requires readjusting the float level...

Harley carburetor spring seat retainer for 1989-2006 Harley CV carburetors. Replacement for OEM p/n 27586-88.  Product is an aftermarket item designed as a direct OE replacement for the original factory product. 

Chrome plated CV Carburetor top cover with louvered top. Stainless steel mounting screws. Fits Big Twin 1990/Later & Sportster 1988/Later. Replaces HD# 27040-88 & 27129-88 Special through - only $15.25 Imported byHardDrive® ...

CVP performance slide spring for Harley CV carburetors and Keihin CVK40. Special tension design provides improved throttle response while eliminating "slide bounce" encountered with cut or shortened race model springs. American made from stainless steel and available for the following CV carburetor models:1989-2006 Big Twin and Twin Cam1988-2006 Sportster 883-1200 models1987-2018 KLR650 using Keihin CVK40Improves performance and throttle response without the need to drill the original slide....

Basic Renewal Kit for Buell Blast models with the CV40 style carburetor. The kit contains the quality seals needed to renew your Blast CV carburetor.  SALE - only $14.95 --> Bowl Gasket Seal *- Quality seal replaces dried or cracked bowl seal. Float needle valve  - 4 side body design with long lasting Viton tip.- Replaces OEM 27886-78A Air Cleaner Gasket- Non-stick coated gasket- Replaces p/n 29059-88* *For use on the CV carburetor...

The CVP Needle Jet is a direct replacement for stock Harley needle jet (nozzle) found on all CV40 carburetors. CNC machined from stainless steel and is a perfect replacement for jet nozzles worn from aftermarket adjustable needles, high mileage, or to replace lost/misplaced parts. The Needle Jet nozzle is mandatory for correct fuel spray as the needle lifts during normal acceleration. Available for all constant velocity (CV) carburetors on 1989-2006 Big Twin and Sportster...

The V-Ductor is the velocity stack that fits under your air cleaner. By funneling air through the unique and proven venturi design, the V-Ductor reduces turbulence while increasing velocity for optimal fuel mixture. Unlike vanes, grates or screens that may deflect airflow or encourage turbulence, the V-Ductor never blocks or reduces flow. Increased air density greatly improves mileage by encouraging a more complete burn of the air/fuel mixture. Bolt-on performance that installs in minutes. The...

Short style choke cable for Harley CV carburetors. Replaces the original p/n #29238-92 short style cable and all other Harley CV enrichener cables where a shorter style cable is required. The Motion Pro short choke cable is ideal when used with our relocation choke bracket to prevent interference with the fuel elbow. Originally equipped on Harley Sportsters but ideal for relocating the choke bracket location.  Replacement for Harley p/n 29238-92 and 29229-88D Fits all Harley CV...

Choke cable for Harley CV carburetors. Replaces the original p/n # 29236-90 and 29229-88 standard choke cables found on 1990-2006 big twin models. The 8" choke cable from Motion Pro is the perfect replacement for your stock cable. May also be used with our choke relocation bracket, however the Short Style 29238-92 cable Here is the better length where a short cable is needed. Originally equipped on Harley big twin models 1990-2006.  Replacement for...

Replacement screw kit for the accelerator pump cover on Harley CV carburetors. Stock factory screws commonly strip after removal. These quality screws will stand up to repeated removal and all weather conditions. Includes 3 stainless steel socket head screws, 3 washers, and a metric hex key. Will fit 89-06 Harley CV style carburetors only.

Replacement screw kit for the float bowl screws found on Harley CV carburetors and KLR650 CVK40 carburetors. Replace those stock factory screws which commonly strip after removal. These quality stainless steel screws will stand up to repeated removal and all weather conditions. Includes stainless steel socket head screws, washers, and a metric hex key. Note that appearance of all products are subject to change. Fits Harley CV40 1989-2006 and Keihin CVK40 carburetors.  ...

Float fuel valve w/clip for 1990-2006 Harley CV carburetors. Replacement for OEM p/n 27886-78A. *3-Sided OE replacement version. Worn float valves are the most common cause of bowl overflows and engine flooding. *Only order if you are replacing a 3-Sided valve. Not for use where 4-side valves are previously installed. Note: This item is OEM and therefore requires use of a factory service manual to install if not already familiar with the procedure. We also carry the 4-sided version...

Rebuild kit for early Harley Butterfly style carburetors. Replaces OEM kit 27006-92T for use with all 1976-1989 Harley Big Twin or 1976-1987 XL models using the Keihin butterfly carburetor only. Kits include gaskets, o-rings, accelerator pump diaphragm, both early and late style float needles, and all other common parts pictured that are necessary for a complete rebuild. Manufactured by Cycle Pro LLC*. NOTE: Kit is supplied as an OEM parts-only kit and may require a factory service manual...

Complete rebuild kit for Mikuni HSR 42 and 45 carburetors. SALE - Blemished Kits. These kits were stored by the supplier in a humid warehouse and therefore the brass needle seat may be tarnished or require cleaning before installation. We are offering these kits as a close-out at this reduced price while supplies last. Included in kit:(1) Float needle and brass seat with o-ring(1) O-ring(1) Gasket(6) O-rings(1) Flat O-ring(1) Rubber boot(1) E-clip(1) Plastic washer(4) #8-32 x 7/16 in. bowl...

CVP's low profile accelerator pump pedestal nozzle for CV carburetors promotes a more laminar flow in the carburetor inlet reducing turbulence and providing a spray directed into the lower center of the venturi. Includes the pedestal, o-ring and replacement bowl hardware. Installation instructions. New improved design. Now includes an o-ring to eliminate the need to provide a gap at the base of the pedestal and gasket surface. Simply press in with the included o-ring installed and the pedestal...

SPECIAL: Blemished version of our popular CV carburetor slide.  This slide is perfectly functional although they may be discolored, unpolished, or have other blemishes on the casting. These are minor visual blemishes that do not impact function or performance and are not considered a defect. Perfect for shops performing carburetor service or customers not concerned with parts that have some minor cosmetic blemishes. Limited quantity at this discount.  Complete vacuum slide assembly...

The "butterfly" version of our original EZ-Just mixture screw for adjusting the air idle mixture on early 1979-87 Harley Sportster or 81-89 big twin Keihin carburetors. Easily tune and adjust your idle mixture without burning your hands or fumbling with a screwdriver. Compatible only with pre-1987* Harley butterfly carburetors and replaces the stock mixture screw. Not for use on CV style carburetors or carburetors used on non-Harley motorcycles. This part will NOT fit Keihin CVK carburetors....

Enrichener choke cable for Harley CV carburetors. Replaces original p/n #29229-88D cable and all other Harley CV enrichener cables for big twin and Sportster. The OE cable is ideal when used with our choke bracket and has a shorter rigid section to prevent interference with the fuel inlet elbow. Close out item while supplies last Replacement for Harley p/n 29229-88D and 29236-90 See p/n 29238-92 for the shortest available cable. Import clearance item Fits all Harley CV...

Adapts Harley CV carburetors or Mikuni HSR42 to early stock and aftermarket 2-bolt manifolds. No need to change manifolds when swapping out old style carburetors. Precision machined billet aluminum Uses slip on boot seal (not included) used with all Harley CV and Mikuni HSR carburetors. Allows attachment of modern spigot mount carburetors to flange style manifold. For use with HSR42 Mikuni or Harley CV Carburetor only. Requires use of a manifold boot seal, flat flange gasket, and existing...

American made intermediate jets for S&S® Super E and G carburetors. We carry the most common sizes for your Harley: sizes # .025 - .040.These jets are American made by Cycle Pro and guaranteed to fit all S&S® E/G carburetors, and Ultima R1 / R2 carburetors. Jets sold each. We also carry main jets for S&S® Super carbs. Not for use or sale in California S&S Super E/G Quick Tuning Steps ...

American made main jets for S&S® Super E and G carburetors. We carry the most common sizes for your Harley: sizes # .062 - .090. These jets are American made by Cycle Pro and guaranteed to fit all S&S® E/G carburetors, and Ultima R1 / R2 carburetors. Jets sold each. We also carry intermediate jets for S&S® Super carbs. Not for use or sale in California S&S Super E/G Quick Tuning Steps JET SIZE S&S P/N 0.062 11-7231 0.064 11-7232 0.066 11-7233 0.068 11-7234 0.070 11-7235 0.072 11-7236 0.074...