Harley Carburetor Main Jets
Harley-Davidson Carburetor Main Jets at JJ Motorsports
Tune your Harley's carb perfectly with premium main and intermediate jets from JJ Motorsports, designed for Keihin CV, S&S, and Mikuni carbs on Sportster, Big Twin, Evo, and Twin Cam models. These precision brass jets deliver accurate fuel metering for crisp throttle response and maximum power.
Shop EBC and S&S Cycle carburetor jets for proven reliability. Explore related categories such as Harley air and fuel for rebuild kits and air cleaners, or Harley for exhaust and cams to complete your carb tuning.
Top Harley-Davidson Carburetor Main Jets
- EBC Keihin Harley-Davidson Assortment Jet Kit HDJK12 – 12-piece main jet assortment for Keihin CV carbs; perfect for dyno tuning and altitude changes.
- S&S Cycle Main Jet .072 11-7236 – .072 main jet for S&S Super E/G carbs; ideal for performance builds.
- S&S Cycle Intermediate Jet .0295 11-7110 – .0295 intermediate jet for S&S carbs; fine-tunes mid-range for smoother power delivery.
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
-
On Sale
S&S CYCLE Main Jet - .102" - 5-Pack 11-7251
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060322- SKU:
- 10060322
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- FEATURES:
- FOR S&S CARBURETORS
- JET SIZE:
- 0.102
- TYPE:
- MAIN
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .120" - 5-Pack 11-7257
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060326- SKU:
- 10060326
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- TYPE:
- MAIN
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- FEATURES:
- FOR S&S CARBURETORS
- JET SIZE:
- 0.120
- UNITS:
- 5 PACK
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .042" 11-7221
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060229- SKU:
- 10060229
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- JET SIZE:
- 0.042
- FEATURES:
- FOR S&S CARBURETORS
- TYPE:
- MAIN
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .044" 11-7222
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95Proper jetting is fundamental to carburetor performance, and the S&S Cycle Main Jet .044" ensures your engine receives the precise fuel-air mixture it demands across the RPM range. Whether you're running a stock build or a performance-modified engine,...10060230- SKU:
- 10060230
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- JET SIZE:
- 0.044
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- FEATURES:
- FOR S&S CARBURETORS
- UNITS:
- 5 PACK
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .046" 11-7223
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95Proper jetting is fundamental to carburetor tuning—get it wrong, and you're leaving power on the table while risking engine damage from running too lean or too rich. The S&S Cycle Main Jet .046" is engineered for stock and performance engines where...10060231- SKU:
- 10060231
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- FEATURES:
- FOR S&S CARBURETORS
- JET SIZE:
- 0.046
- UNITS:
- 5 PACK
- TYPE:
- MAIN
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .048" 11-7224
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060232- SKU:
- 10060232
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- FEATURES:
- FOR S&S CARBURETORS
- TYPE:
- MAIN
- JET SIZE:
- 0.048
- UNITS:
- 5 PACK
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .050" 11-7225
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95Proper jetting is foundational to carburetor tuning—get it wrong and you're leaving performance on the table or risking engine damage. The S&S Cycle Main Jet .050" is engineered for precision fuel metering across a wide RPM range, making it essential for...10060233- SKU:
- 10060233
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- JET SIZE:
- 0.050
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 5 PACK
- FEATURES:
- FOR S&S CARBURETORS
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
S&S CYCLE Main Jet - .052" 11-7226
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060234- SKU:
- 10060234
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 5 PACK
- FEATURES:
- FOR S&S CARBURETORS
- JET SIZE:
- 0.052
- PRODUCT NAME:
- JET
MSRP: $50.95Now: $45.86Was: $50.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $45.86Was: $50.95Subtotal: -
On Sale
S&S CYCLE Main Jet - .054" 11-7227
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.10060235- SKU:
- 10060235
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- JET SIZE:
- 0.054
- FEATURES:
- FOR S&S CARBURETORS
- TYPE:
- MAIN
MSRP: $50.95Now: $45.86Was: $50.95 -
On Sale
EBC Carburetor Jet Kit - Harley-Davidson - 2-Pack EBC424-27-190
EBC
MSRP: $4.79Now: $4.55Was: $4.79Proper jetting is fundamental to maximizing carburetor performance and engine response on your Harley-Davidson. These EBC jets deliver precise fuel flow calibration, eliminating rich or lean running conditions that compromise throttle response and fuel...10060294- SKU:
- 10060294
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- HEAD DIAMETER METRIC:
- 7.00 MM
- JET SIZE:
- 190
- PRODUCT NAME:
- MAIN JET
- OVERALL LENGTH METRIC:
- 8.00 MM
- TYPE:
- CARBURETOR
- MODEL:
- KEIHIN
- RIDING STYLE:
- STREET
- UNITS:
- 2 PACK
MSRP: $4.79Now: $4.55Was: $4.79Qty in Cart: 0Quantity:Price:MSRP: $4.79Now: $4.55Was: $4.79Subtotal: -
On Sale
S&S CYCLE Main Jet - .068" 11-7234
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95For jetting most stock and performance engines, Made in the U.S.A.DS72068- SKU:
- DS72068
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- JET SIZE:
- 0.068
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- FEATURES:
- FOR S&S CARBURETORS
- UNITS:
- 5 PACK
MSRP: $50.95Now: $45.86Was: $50.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $45.86Was: $50.95Subtotal: -
On Sale
S&S CYCLE Main Jet - .110" - 5-Pack 11-7255
S&S CYCLE
MSRP: $50.95Now: $45.86Was: $50.95Proper jetting is fundamental to carburetor tuning—it directly impacts fuel delivery, throttle response, and engine performance across your entire RPM range. The S&S Cycle .110" main jet is engineered for stock and performance engines, giving you the...10060324- SKU:
- 10060324
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- JET SIZE:
- 0.110
- PRODUCT NAME:
- JET
- UNITS:
- 5 PACK
- FEATURES:
- FOR S&S CARBURETORS
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
MSRP: $50.95Now: $45.86Was: $50.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $45.86Was: $50.95Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Carburetor Main Jets
- Compatibility: Ensure jets fit your Harley's carburetor type (e.g., Keihin CV, S&S Super E/G, Mikuni HSR42/45/48, HS40) and model (e.g., Big Twin 1988-2006, Sportster, Evo, Twin Cam). Use the vehicle selector for year-specific matches to avoid tuning or flow issues.
- Type of Use: For stock or performance tuning, select main jets (sizes 160-220, .062"-.080") for high-RPM fuel; intermediate jets (.0295"-.033") suit low-range adjustments; assortment kits are ideal for dyno testing or altitude changes in street or touring conditions.
- Components and Upgrades: Choose individual jets, 5-packs, or assortment kits; upgrade to extension kits for air bubble prevention. Focus on precision-machined brass for accurate metering and improved throttle response/power.
- Brand and Quality: Opt for S&S Cycle for Super E/G jets, EBC for Keihin assortment kits, MIKUNI for HSR extensions, CYCLE CRAFT for brass main jets, or YOST PERFORMANCE for 195-220 kits. Prioritize Japan/USA-made brass for durability and consistent flow.
- Installation and Cost: Jets are simple swaps for DIY tuning; kits include multiple sizes for convenience. Prices range from $4.79 for 2-packs to $64.67 for assortments—factor in sales (up to 10% off) and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and carburetors do these main jets support? Jets support models like Big Twin (1988-2006), Sportster, Evo, Twin Cam, with compatibility for Keihin CV, S&S Super E/G, Mikuni HSR—use the year/make/model filter for exact matches.
- How do main jets improve carburetor performance? They allow precise fuel metering for better throttle response, power delivery, and mid-range smoothness, especially in modified or altitude-varying setups.
- What is typically included in a jet kit? Assortment kits like EBC HDJK12 include 12 main jets; 5-packs (S&S, CYCLE CRAFT) for specific sizes; extensions (MIKUNI) prevent bubbles.
- Are these jets durable with modern fuels? Yes, precision-machined brass construction ensures reliability and flow calibration against ethanol blends.
- What if a jet size doesn't fit my Harley? Verify carb type and size requirements before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related air and fuel parts? Yes—explore rebuild kits, air cleaners, or carbs in the Harley air and fuel category to complement your jet upgrade for optimal tuning.
