Harley Carburetor Rebuild Kits
Harley-Davidson Carburetor Rebuild Kits at JJ Motorsports
Restore crisp throttle response on your Harley with premium carburetor rebuild kits from JJ Motorsports, featuring high-quality jets, needles, gaskets, and seals for Mikuni HSR 42/45, S&S Super B, and classic CV carbs on Sportster, Big Twin, and Evo models. These complete kits make carb refresh fast and reliable.
Shop Mikuni, Drag Specialties, and S&S Cycle rebuild kits for proven performance. Explore related categories such as Harley air and fuel for jets and air cleaners, or Harley for exhaust and cams to complete your tuning and ride with perfect carburetion.
Top Harley-Davidson Carburetor Rebuild Kits
- Mikuni HSR Series 42/45 Carburetor Rebuild Kit KHS-016 – Full kit for Mikuni HSR42/45 carbs; includes all seals, jets, and needle for total refresh.
- Drag Specialties Carburetor Rebuild Kit 42 Mikuni I03102-0704 – Complete rebuild for 42mm Mikuni HSR; high-quality parts for Evo and Twin Cam Harleys.
- S&S Cycle Super B Carburetor Rebuild Kit 11-2903 – Rebuild kit for S&S Super B carb; restores performance on classic Big Twins.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
S&S CYCLE Dealer Carburetor Jet Kit 11-3102
S&S CYCLE
MSRP: $418.95Now: $377.06Was: $418.95Getting your carburetor jetting dialed in is critical for optimal engine performance—too lean and you risk detonation and power loss, too rich and you're wasting fuel and fouling plugs. The S&S Cycle Dealer Carburetor Jet Kit gives you the precision...10030015- SKU:
- 10030015
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- JET KIT
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
- UNITS:
- KIT
MSRP: $418.95Now: $377.06Was: $418.95Qty in Cart: 0Quantity:Price:MSRP: $418.95Now: $377.06Was: $418.95Subtotal: -
On Sale
S&S CYCLE Super E/Super G Carburetor Cruise Control Kit - '98-'06 11-2927
S&S CYCLE
MSRP: $225.95Now: $203.36Was: $225.95If you're running a Super E or Super G carburetor on your Harley-Davidson and don't want to sacrifice factory cruise control, this kit eliminates the guesswork. S&S Cycle engineered this solution to integrate their compact Super Shorty carbs seamlessly...10030022- SKU:
- 10030022
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CRUISE CONTROL
- MODEL:
- SUPER E
- UNITS:
- KIT
- MODEL:
- SUPER G
- PRODUCT NAME:
- ADAPTER
MSRP: $225.95Now: $203.36Was: $225.95 -
On Sale
S&S CYCLE Super E and G Carburetor Throttle Plate 11-2355
S&S CYCLE
MSRP: $21.95Now: $19.76Was: $21.95A properly functioning throttle plate is critical for precise fuel-air mixture control and responsive engine performance. The S&S Cycle Super E and G Carburetor Throttle Plate (11-2355) delivers reliable, accurate throttle response for Harley-Davidson...10031707- SKU:
- 10031707
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- SUPER E
- UNITS:
- EACH
- MODEL:
- SUPER G
- PRODUCT NAME:
- THROTTLE PLATE
- RIDING STYLE:
- STREET
MSRP: $21.95Now: $19.76Was: $21.95 -
On Sale
S&S CYCLE E/G and CV Carburetor Guide Cable 11-2338P
S&S CYCLE
MSRP: $40.95Now: $36.86Was: $40.95Precise throttle control is foundational to reliable engine performance, and a worn or damaged guide cable compromises both drivability and safety. The S&S Cycle E/G and CV Carburetor Guide Cable 11-2338P is engineered to maintain consistent cable...10030195- SKU:
- 10030195
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- STREET
- TYPE:
- THROTTLE
- MODEL:
- FOR CV CARBURETORS
- UNITS:
- EACH
- PRODUCT NAME:
- CABLE GUIDE
MSRP: $40.95Now: $36.86Was: $40.95 -
K&S TECHNOLOGIES Carburetor Air Cut-Off Valve Set 56-1018
K&S TECHNOLOGIES
$27.95Deceleration backfire is a common tuning headache that compromises engine reliability and performance. This K&S Technologies air cut-off valve set restores proper fuel mixture control during throttle transitions, eliminating the lean-condition backfiring...10030308- SKU:
- 10030308
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- UNITS:
- SET
- PRODUCT NAME:
- VALVE
- TYPE:
- AIR CUT-OFF
$27.95 -
CYCLE PRO LLC Carburetor Bowl - CV - 40mm 16708
CYCLE PRO LLC
$36.80Upgraded with Cycle Pro® accelerator pump circuit, Includes viton rubber molded seal10031931- SKU:
- 10031931
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- SILVER
- MODEL:
- FOR CV CARBURETORS
- TYPE:
- CARBURETOR
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- CARBURETOR SIZE:
- 40 MM (1-5/8')
- CARBURETOR SIZE METRIC:
- 40 MM
- PRODUCT NAME:
- FLOAT BOWL
- BASE COLOR:
- SILVER
- CARBURETOR SIZE IMPERIAL:
- 1-5/8'
$36.80Qty in Cart: 0Quantity:Price:$36.80Subtotal: -
ALL BALLS Mikuni 48 Series Carburetor Gasket Kit 26-10053
ALL BALLS
$74.32Carburetor maintenance doesn't have to sideline your riding season. The ALL BALLS Mikuni 48 Series Gasket Kit supplies all the seals, gaskets, and jets you need to get both carburetors running clean and responsive again—without sourcing parts from...10031949- SKU:
- 10031949
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MODEL:
- FOR HSR 48
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- CARBURETOR
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
$74.32Qty in Cart: 0Quantity:Price:$74.32Subtotal: -
S&S CYCLE Super E/Super G Carburetor 6 AN Inlet Seat 11-2395
S&S CYCLE
$45.86The S&S Cycle Super E/Super G carburetor inlet seat is a critical wear component that directly impacts fuel delivery precision and engine performance consistency. Over time, the stock seat degrades, leading to fuel leakage, inconsistent jetting, and loss...10031726- SKU:
- 10031726
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- MODEL:
- S&S/E AND G
- TYPE:
- FUEL
- UNITS:
- EACH
- PRODUCT NAME:
- INLET SEAT
$45.86 -
On Sale
S&S CYCLE Cap Assembly Acceleration Pump 11-2389
S&S CYCLE
MSRP: $40.95Now: $36.86Was: $40.95Precise fuel delivery under acceleration is critical to maintaining consistent jetting and preventing bog in high-performance carburetors. The S&S Cycle Cap Assembly Acceleration Pump ensures your fuel injection responds exactly when you need it,...10031728- SKU:
- 10031728
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ACCELERATOR PUMP
- PRODUCT NAME:
- CAP
- UNITS:
- EACH
MSRP: $40.95Now: $36.86Was: $40.95 -
ZENITH FUEL SYSTEMS Bendix Carburetor Repair Kit - '72-E'76 Harley-Davidson K-2177
ZENITH FUEL SYSTEMS
$72.95A carburetor rebuild is essential maintenance for any classic Harley-Davidson, and a complete repair kit eliminates guesswork by providing every gasket, seal, and component needed to restore proper fuel delivery and throttle response. ZENITH Fuel...DS289090- SKU:
- DS289090
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- CARBURETOR
$72.95Qty in Cart: 0Quantity:Price:$72.95Subtotal: -
ZENITH FUEL SYSTEMS Bendix Carburetor Rebuild Kit - L'81-'89 - 40mm K2234
ZENITH FUEL SYSTEMS
$77.95Carburetor performance degrades over time as gaskets harden, seals wear, and internal components accumulate varnish. This rebuild kit restores your Bendix carb to factory specifications, ensuring crisp throttle response, consistent idle quality, and...DS289084- SKU:
- DS289084
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- CARBURETOR
$77.95Qty in Cart: 0Quantity:Price:$77.95Subtotal: -
On Sale
S&S CYCLE Super G Carburetor Spacer/Insulator Block 16-0357
S&S CYCLE
MSRP: $91.95Now: $82.76Was: $91.95Carburetor performance depends on reliable sealing and consistent fuel delivery—worn gaskets and O-rings compromise both. The S&S CYCLE Super G Carburetor Spacer/Insulator Block keeps your fuel mixture calibrated and prevents lean-running conditions that...160357- SKU:
- 160357
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MODEL:
- SUPER G
- TYPE:
- INSULATOR
- INSULATOR THICKNESS IMPERIAL:
- 1.00'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER BLOCK
MSRP: $91.95Now: $82.76Was: $91.95Qty in Cart: 0Quantity:Price:MSRP: $91.95Now: $82.76Was: $91.95Subtotal: -
On Sale
S&S CYCLE E and G Carburetor Needle 11-2195
S&S CYCLE
MSRP: $19.95Now: $17.96Was: $19.95Precise fuel metering is the foundation of carburetor performance, and worn or incorrect needles rob your engine of both responsiveness and reliability. The S&S Cycle E and G Carburetor Needle delivers OEM-quality fitment and consistent jet control...10030042- SKU:
- 10030042
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- S&S
- PRODUCT NAME:
- NEEDLE
- TYPE:
- CARBURETOR
MSRP: $19.95Now: $17.96Was: $19.95 -
On Sale
S&S CYCLE Super E Carburetor Body 11-2381
S&S CYCLE
MSRP: $305.95Now: $275.36Was: $305.95The S&S Cycle Super E Carburetor Body delivers the precise fuel metering and responsive throttle control that separates competitive performance from mediocre builds. Built on decades of S&S engineering expertise, this component ensures consistent...10031702- SKU:
- 10031702
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- PRODUCT NAME:
- CARB BODY ASSEMBLY
- CARBURETOR SIZE METRIC:
- 47.63 MM
- MODEL:
- SUPER E
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $305.95Now: $275.36Was: $305.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Carburetor Rebuild Kits
- Compatibility: Ensure the kit fits your Harley's carburetor type (e.g., S&S Super E/G, Keihin CV, Mikuni HSR42/45/48, HS40) and model (e.g., Big Twin 1970-2006, XL 1973-1985, Twin Cam 1999-2006). Use the vehicle selector for year-specific matches to avoid incomplete repairs or performance issues.
- Type of Use: For vintage or stock rebuilds, opt for basic kits with gaskets and jets; performance or modified engines benefit from comprehensive sets including diaphragms, needles, and O-rings for smooth throttle response in street or touring conditions.
- Components and Upgrades: Select kits with gaskets, diaphragms, needles, jets, O-rings, springs, and seals; upgrade to ethanol-resistant materials or brass jets for durability against modern fuels.
- Brand and Quality: Choose S&S Cycle for Super E/G kits, K&L Supply for Keihin CV rebuilds, or Mikuni for HSR/HS40 options. Prioritize high-quality, OEM-matching components for reliable sealing and long-term performance.
- Installation and Cost: Kits are designed for DIY carb overhauls with basic tools; prices range from $24.95 for basic sets to $102.95 for premium options—factor in expert support for fitment and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and carburetors do these rebuild kits support? Kits support models like Big Twin (1970-2006), XL (1973-1985), Twin Cam (1999-2006), with compatibility for S&S Super E/G, Keihin CV, Mikuni HSR42/45/48, and HS40—use the year/make/model filter for exact matches.
- How do rebuild kits restore carburetor performance? They include components to replace worn seals, jets, and diaphragms, ensuring smooth operation, preventing leaks, and improving throttle response for stock or modified engines.
- What is typically included in a kit? Most kits contain gaskets, diaphragms, needles, jets, O-rings, springs, and seals; check details for specific inclusions like accelerator pump or idle mixture screws.
- Are these kits suitable for ethanol fuels? Yes, many feature ethanol-resistant materials to withstand modern E10 blends without degradation.
- What if a kit doesn't fit my Harley? Verify carb type and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related air and fuel parts? Yes—explore air cleaners, fuel filters, or full carbs in the Harley air and fuel category to complement your rebuild for optimal engine efficiency.
