Street Bike Carburertor Main Jets
Street Bike Carburetor Main Jets at JJ Motorsports
Tune your street bike's carb precisely with premium Mikuni and EBC main/pilot jets from JJ Motorsports, available in convenient 4-packs for accurate fuel metering and optimal performance on Suzuki GSX-R, Honda CBR, Kawasaki ZX, Yamaha R-series, and classic carbureted models.
Shop Mikuni and EBC carburetor jets for OEM-quality brass construction and reliable tuning. Explore related categories such as street bike air and fuel for rebuild kits and needles, or street bike for exhaust and brakes to complete your carb refresh and achieve crisp throttle response on every ride.
Top Street Bike Carburetor Main Jets
- Mikuni Main Jet 4-Pack N100604-152.5 – Size 152.5 main jets; perfect for fine-tuning high-RPM performance on GSX-R and CBR models.
- Mikuni Pilot Jet 4-Pack VM28/486-15 – Size 15 pilot jets; essential for smooth idle and low-speed response on Yamaha R6 and Kawasaki ZX.
- EBC Mikuni-Style Carburetor Jet 4-Pack HJ135-4 – Size 135 main jets; affordable Mikuni-compatible pack for classic street bike tuning.
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
-
EBC Mikuni-Style Carburetor Jet - 4-Pack SJ90-4
EBC
$11.17Precise fuel metering is the foundation of carburetor tuning, and worn or mismatched jets compromise throttle response and engine performance. The EBC Mikuni-Style Carburetor Jet 4-Pack delivers consistent, flow-calibrated fuel delivery across your carb...10060025- SKU:
- 10060025
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 8.00 MM
- HEAD LENGTH METRIC:
- 4.00 MM
- MODEL:
- RD PRECISION
- RIDING STYLE:
- ATV
- THREAD LENGTH METRIC:
- 5.00 MM
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- FEATURES:
- FOR SJ CARBURETORS
- HEAD TYPE:
- SLOTTED
- JET SIZE:
- 90
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- BASE COLOR:
- BRASS
- OVERALL DIAMETER METRIC:
- 9.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- THREAD PITCH:
- M5 X 0,75
$11.17 -
EBC Mikuni-Style Carburetor Jet - 4-Pack HJ160-4
EBC
$11.17Carburetor tuning depends on precision jet sizing, and worn or incorrect jets will rob your engine of fuel delivery accuracy and throttle response. These EBC Mikuni-style jets are flow-calibrated brass replacements that restore proper fuel atomization...10060070- SKU:
- 10060070
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD LENGTH METRIC:
- 6.50 MM
- JET SIZE:
- 160
- RIDING STYLE:
- ATV
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- THREAD LENGTH METRIC:
- 5.00 MM
- UNITS:
- 4 PACK
- BASE COLOR:
- BRASS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD DIAMETER METRIC:
- 6.00 MM
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH METRIC:
- 11.50 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- THREAD PITCH:
- M5,3 X 0,9
$11.17 -
EBC Mikuni-Style Carburetor Jet - 4-Pack HJ165-4
EBC
$11.17Carburetor jetting directly impacts engine response, fuel efficiency, and overall performance—incorrect jet sizing leads to lean running conditions, hesitation, and potential engine damage. These EBC Mikuni-style jets are flow-calibrated to OEM...10060071- SKU:
- 10060071
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD LENGTH METRIC:
- 6.50 MM
- JET SIZE:
- 165
- RIDING STYLE:
- ATV
- BASE COLOR:
- BRASS
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- THREAD LENGTH METRIC:
- 5.00 MM
- UNITS:
- 4 PACK
- HEAD DIAMETER METRIC:
- 6.00 MM
- OVERALL DIAMETER METRIC:
- 6.00 MM
- OVERALL LENGTH METRIC:
- 11.50 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- THREAD PITCH:
- M5,3 X 0,9
$11.17 -
EBC Mikuni-Style Carburetor Jet - 4-Pack HJ170-4
EBC
$11.17Carburetor jets wear down and become inconsistent over time, throwing off your air-fuel ratio and costing you power across the RPM band. These EBC Mikuni-style jets deliver the precision flow calibration you need to dial in your fuel delivery without...10060072- SKU:
- 10060072
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD LENGTH METRIC:
- 6.50 MM
- RIDING STYLE:
- ATV
- THREAD LENGTH METRIC:
- 5.00 MM
- HEAD TYPE:
- HEX HEAD
- MATERIAL:
- BRASS
- OVERALL LENGTH METRIC:
- 11.50 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- TYPE:
- MAIN
- BASE COLOR:
- BRASS
- HEAD DIAMETER METRIC:
- 6.00 MM
- JET SIZE:
- 170
- OVERALL DIAMETER METRIC:
- 6.00 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- THREAD PITCH:
- M5,3 X 0,9
$11.17 -
EBC Keihin-Style Carburetor Jet - 4-Pack KJ130-4
EBC
$11.17Precise fuel metering is the foundation of carburetor tuning, and worn or incorrect jets will compromise both drivability and performance across your entire RPM range. EBC's Keihin-style jets are flow-calibrated brass replacements engineered to exacting...10060150- SKU:
- 10060150
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BRASS
- MODEL:
- RD PRECISION
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- FEATURES:
- FOR KJ CARBURETORS
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- JET SIZE:
- 130
- OVERALL DIAMETER:
- 6,00 MM (0,24')
- OVERALL DIAMETER IMPERIAL:
- 0.24'
- OVERALL DIAMETER METRIC:
- 6.00 MM
- RIDING STYLE:
- SNOW
$11.17 -
MIKUNI Genuine Mikuni N100.604 Main Jets - #155 - 4-Pack N100604-155
MIKUNI
$5.20Proper jetting is fundamental to carburetor performance—too lean and you'll lose power and risk engine damage, too rich and you'll waste fuel and foul plugs. These genuine Mikuni #155 main jets deliver the precise fuel metering your engine needs across...KN100604155- SKU:
- KN100604155
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-150
MIKUNI
$14.55Precision fuel delivery is the foundation of carburetor tuning, and running the correct main jet size directly impacts your engine's power output and throttle response. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel...KN100604150- SKU:
- KN100604150
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- JET SIZE:
- 150
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-205
MIKUNI
$5.20A properly jetted carburetor is the foundation of reliable engine performance, and running the correct main jet size is critical for fuel delivery under load. This 4-pack of MIKUNI main jets gives you multiple sizing options to dial in your air-fuel...10060246- SKU:
- 10060246
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- UTV
- JET SIZE:
- 205
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-1475
MIKUNI
$14.55Precision fuel delivery is the foundation of carburetor tuning, and the right main jet size makes the difference between a lean-running engine and one that produces peak power across the RPM band. This 4-pack of MIKUNI main jets gives you the flexibility...KN1006041475- SKU:
- KN1006041475
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- JET SIZE:
- 147.5
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Pilot Jet - 4-Pack VM28/486-45
MIKUNI
$14.55Precise fuel metering at idle and low-throttle conditions directly impacts throttle response, cold starts, and overall drivability—making pilot jet selection critical for any carbureted engine. This genuine Mikuni 4-pack gives you the flexibility to dial...KVM2848645- SKU:
- KVM2848645
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- JET SIZE:
- 45
- OVERALL LENGTH METRIC:
- 27.80 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- HEAD DIAMETER METRIC:
- 5.00 MM
- RIDING STYLE:
- STREET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-1175
MIKUNI
$5.20Jetting is the foundation of carburetor tuning—get it wrong, and you'll leave power on the table or risk lean-running damage. The MIKUNI Main Jet 4-Pack gives you the flexibility to dial in your fuel mixture across load ranges and altitude conditions...KN1006041175- SKU:
- KN1006041175
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- JET SIZE:
- 117.5
- RIDING STYLE:
- ATV
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-125
MIKUNI
$14.55Proper jetting is fundamental to carburetor performance—too rich or too lean, and you'll sacrifice throttle response, fuel economy, and engine reliability. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel mixture...KN100604125- SKU:
- KN100604125
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- HEAD TYPE:
- SLOTTED
- JET SIZE:
- 125
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-1325
MIKUNI
$5.20Jetting is the foundation of carburetor tuning—get it wrong, and you're leaving performance on the table and risking engine damage. The MIKUNI Main Jet 4-Pack gives you the flexibility to dial in your air-fuel ratio precisely, whether you're compensating...KN1006041325- SKU:
- KN1006041325
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 132.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-135
MIKUNI
$5.20Precise fuel metering is fundamental to carburetor tuning, and the right main jet is non-negotiable for consistent performance across throttle ranges. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel ratio without...KN100604135- SKU:
- KN100604135
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- JET SIZE:
- 135
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- RIDING STYLE:
- ATV
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-65
MIKUNI
$14.55Precise jetting is the foundation of carburetor tuning, and running the wrong main jet compromises fuel delivery across your RPM range. This 4-pack of genuine Mikuni main jets gives you the flexibility to dial in your air-fuel mixture for peak...KN10060465- SKU:
- KN10060465
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- JET SIZE:
- 65
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-70
MIKUNI
$14.55If you're running a Mikuni carburetor and need precise fuel metering for optimal engine performance, main jet selection is critical—too lean and you risk detonation, too rich and you lose power and waste fuel. This 4-pack of OEM Mikuni main jets gives...KN10060470- SKU:
- KN10060470
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 70
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- MAIN
- RIDING STYLE:
- STREET
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-775
MIKUNI
$14.55Precision fuel delivery is fundamental to carburetor performance, and a properly sized main jet is critical for optimal air-fuel mixture across mid-to-high RPM ranges. This OEM-quality Mikuni main jet ensures your carburetor operates at peak efficiency...KN100604775- SKU:
- KN100604775
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- JET SIZE:
- 77.5
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - 4-Pack N100604-1725
MIKUNI
$5.20Precision fuel delivery is the foundation of carburetor performance, and a worn or incorrect main jet starves your engine of the fuel it needs for consistent power across the RPM band. These genuine Mikuni main jets are engineered to exacting tolerances...KN1006041725- SKU:
- KN1006041725
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 172.5
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-1775
MIKUNI
$14.55Precise fuel metering is foundational to carburetor tuning, and a quality main jet directly impacts throttle response, fuel efficiency, and peak power delivery. This 4-pack of genuine Mikuni main jets eliminates guesswork during jetting changes, giving...KN1006041775- SKU:
- KN1006041775
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- JET
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- JET SIZE:
- 177.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- OFF-ROAD
$14.55Qty in Cart: 0Quantity:Price:$14.55Subtotal: -
MIKUNI Main Jet - 4-Pack N100604-1875
MIKUNI
$5.20Precision fuel delivery is the foundation of carburetor tuning, and the right main jet directly impacts your engine's air-fuel ratio across the mid-to-high RPM range. This 4-pack of genuine Mikuni main jets gives you multiple sizing options to dial in...KN1006041875- SKU:
- KN1006041875
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- JET SIZE:
- 187.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$5.20Qty in Cart: 0Quantity:Price:$5.20Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Street Bike Carburetor Main Jets
- Compatibility: Match jets to your bike's make (e.g., Suzuki GSX-R, Honda CBR, Kawasaki ZX, Yamaha R-series) and carburetor type (e.g., Mikuni VM16, HS40, HSR42/45/48, RS, TM, VM29/33 Smoothbores). Use the vehicle selector for year-specific fits to ensure precise metering without performance issues.
- Type of Use: For high-RPM street or track riding, select main jets (sizes 100-210) for optimized fuel delivery; low-speed/idle tuning benefits from pilot jets (sizes 15-60) in multi-carb setups for smooth response in urban or touring conditions.
- Components and Upgrades: Choose 4-packs with brass construction, slotted heads for easy adjustment, and OEM-quality specs. Focus on ethanol-resistant materials and precise sizing for tuning fuel mixture, throttle response, and engine efficiency.
- Brand and Quality: Opt for Mikuni for premium, Japan-made jets or EBC for compatible alternatives. Prioritize brass slotted designs for durability, accurate flow, and longevity in modern fuels.
- Installation and Cost: Jets are simple to swap with basic tools for DIY tuning; sold in 4-packs for convenience. Prices are $5.20 per pack—consider bulk for multiple sizes and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What street bike models do these carburetor main jets support? Jets fit models with Mikuni carbs like Suzuki GSX-R, Honda CBR, Kawasaki ZX, and Yamaha R-series—use the year/make/model filter for exact compatibility, especially if stock Mikuni-equipped.
- Main jets vs. pilot jets: What's the difference? Main jets (e.g., sizes 100-210) control high-RPM fuel; pilot jets (e.g., sizes 15-60) handle idle/low-speed for smooth acceleration and response.
- How do brass jets improve tuning? Slotted brass construction allows easy adjustment, precise metering, and resistance to modern fuels, optimizing mixture for better throttle and performance.
- Are these jets sold individually? No, available in 4-packs for convenience in tuning multiple carbs or testing sizes.
- What if a jet size doesn't match my bike? Verify carb type and size before buying. Our returns policy allows exchanges or refunds if it doesn't fit.
- Can I find related air and fuel parts? Yes—explore rebuild kits, needles, or full carbs in the street bike air and fuel category to complement your jet upgrade for complete tuning.
