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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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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: $91.95 -
On Sale
S&S CYCLE E and G Carburetor Needle 11-2195
S&S CYCLE
MSRP: $21.35Now: $17.96Was: $21.35Precise 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: $21.35Now: $17.96Was: $21.35 -
On Sale
S&S CYCLE Super E Carburetor Body 11-2381
S&S CYCLE
MSRP: $327.37Now: $275.36Was: $327.37The 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: $327.37Now: $275.36Was: $327.37Qty in Cart: 0Quantity:Price:MSRP: $327.37Now: $275.36Was: $327.37Subtotal:
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.
