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
-
MIKUNI Main Jet - 4-Pack N100604-1075
MIKUNI
$5.20Tuning your carburetor's fuel delivery requires precise jet sizing—too rich and you waste fuel while fouling plugs, too lean and you risk engine damage. The MIKUNI Main Jet 4-Pack gives you the flexibility to dial in your air-fuel ratio across different...KN1006041075- SKU:
- KN1006041075
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 107.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-110
MIKUNI
$5.20Proper jetting is the foundation of carburetor tuning—without the right main jet, you're leaving power on the table and risking lean-condition damage. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel mixture across...KN100604110- SKU:
- KN100604110
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- JET SIZE:
- 110
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-1125
MIKUNI
$5.20A properly sized main jet is critical for consistent fuel delivery across your engine's operating range—too lean and you risk detonation, too rich and you sacrifice efficiency and throttle response. The MIKUNI Main Jet 4-pack gives you the flexibility to...KN1006041125- SKU:
- KN1006041125
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- JET SIZE:
- 112.5
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-115
MIKUNI
$5.20Proper jetting is the foundation of carburetor performance—too lean and you risk engine damage, too rich and you sacrifice efficiency and throttle response. This 4-pack of OEM Mikuni main jets gives you the flexibility to dial in your air-fuel ratio...KN100604115- SKU:
- KN100604115
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- 115
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- SNOW
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Pilot Jet - 4-Pack VM28/486-22.5
MIKUNI
$5.20Precise fuel atomization at idle and low-throttle conditions is critical to carburetor performance, and a worn or incorrect pilot jet will cause stumbling, hesitation, and poor fuel economy. This 4-pack of OEM Mikuni pilot jets gives you the exact...KVM28486225- SKU:
- KVM28486225
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- TYPE:
- PILOT
- HEAD DIAMETER METRIC:
- 5.00 MM
- JET SIZE:
- 22.5
- OVERALL LENGTH METRIC:
- 27.80 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- UNITS:
- 4 PACK
$5.20 -
MIKUNI Pilot Jet - 4-Pack VM28/486-25
MIKUNI
$14.55A properly sized pilot jet is critical for smooth idle quality, crisp throttle response at low RPMs, and consistent cold-start performance across temperature ranges. Running an undersized pilot jet causes lean idle conditions and stumbling off-throttle;...KVM2848625- SKU:
- KVM2848625
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD DIAMETER METRIC:
- 5.00 MM
- OVERALL LENGTH METRIC:
- 27.80 MM
- RIDING STYLE:
- ATV
- TYPE:
- PILOT
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- 25
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- UTV
$14.55 -
MIKUNI Pilot Jet - 4-Pack VM28/486-27.5
MIKUNI
$14.55Precise fuel atomization at low throttle openings is critical for smooth idle quality and predictable off-idle response. This 4-pack of genuine Mikuni pilot jets ensures your carb delivers consistent, calibrated fuel flow during those critical low-speed...KVM28486275- SKU:
- KVM28486275
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 27.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- HEAD DIAMETER METRIC:
- 5.00 MM
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- TYPE:
- PILOT
- OVERALL LENGTH METRIC:
- 27.80 MM
$14.55 -
MIKUNI Pilot Jet - 4-Pack VM28/486-30
MIKUNI
$14.55Precise fuel metering at idle and low-throttle conditions directly impacts engine response, fuel economy, and cold-start behavior. Factory pilot jets often compromise between multiple engine configurations, leaving performance on the table for tuned or...KVM2848630- SKU:
- KVM2848630
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- HEAD DIAMETER METRIC:
- 5.00 MM
- JET SIZE:
- 30
- OVERALL LENGTH METRIC:
- 27.80 MM
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- PILOT
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Pilot Jet - 4-Pack VM28/486-35
MIKUNI
$14.55A properly tuned pilot jet is essential for smooth idle quality, crisp throttle response, and reliable cold starts—especially critical if you're running a high-performance Mikuni carb setup. This genuine OEM 4-pack gives you spares on hand and the...KVM2848635- SKU:
- KVM2848635
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 35
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- PILOT
- HEAD DIAMETER METRIC:
- 5.00 MM
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- OVERALL LENGTH METRIC:
- 27.80 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Pilot Jet - 4-Pack VM28/486-55
MIKUNI
$14.55A properly sized pilot jet is critical for smooth idle quality, responsive throttle response at low RPMs, and consistent cold-start performance across varying atmospheric conditions. If your Mikuni carb is running rich or lean at idle, or hesitating...KVM2848655- SKU:
- KVM2848655
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- TYPE:
- PILOT
- HEAD DIAMETER METRIC:
- 5.00 MM
- MATERIAL:
- BRASS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 4 PACK
- JET SIZE:
- 55
- OVERALL LENGTH METRIC:
- 27.80 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Short Idle Screw Adjuster 990-605-065
MIKUNI
$26.95Precise idle control is foundational to carburetor tuning, and the MIKUNI Short Idle Screw Adjuster gives you the fine-adjustment capability that separates a dialed-in engine from one that hunts and surges. Whether you're chasing consistency on the dyno...990605065- SKU:
- 990605065
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SHORT IDLE SCREW ADJUSTER
- RIDING STYLE:
- STREET
$26.95 -
MIKUNI Main Jet - 4-Pack N100604-190
MIKUNI
$14.55Precision jetting is the foundation of carburetor tuning—get it wrong, and you're leaving performance on the table and risking lean-burn damage. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel ratio across different...KN100604190- SKU:
- KN100604190
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- HEAD TYPE:
- SLOTTED
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- JET SIZE:
- 190
- RIDING STYLE:
- ATV
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-1925
MIKUNI
$5.20Proper jetting is fundamental to carburetor performance—too rich or too lean, and you lose power, efficiency, and engine reliability. The MIKUNI Main Jet 4-Pack gives you the tuning flexibility to dial in your air-fuel mixture precisely, whether you're...KN1006041925- SKU:
- KN1006041925
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- JET SIZE:
- 192.5
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$5.20 -
MIKUNI Main Jet - 4-Pack N100604-195
MIKUNI
$14.55Precise fuel metering is the foundation of reliable carburetor performance, and a worn or incorrect main jet directly impacts throttle response, fuel economy, and engine behavior across the RPM range. Whether you're tuning for altitude changes, engine...KN100604195- SKU:
- KN100604195
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- JET SIZE:
- 195
- RIDING STYLE:
- ATV
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-200
MIKUNI
$14.55Precise fuel delivery is the foundation of carburetor tuning, and running the correct main jet is non-negotiable for optimal performance and engine reliability. This 4-pack of Mikuni main jets gives you the flexibility to dial in your air-fuel ratio...KN100604200- SKU:
- KN100604200
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- JET SIZE:
- 200
- RIDING STYLE:
- UTV
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-625
MIKUNI
$14.55Precise fuel delivery is non-negotiable when tuning your Mikuni carburetor for peak performance. A properly sized main jet ensures your air-fuel ratio stays dialed in across the RPM range, preventing lean running conditions that compromise power and risk...KN100604625- SKU:
- KN100604625
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- ATV
- JET SIZE:
- 62.5
- MATERIAL:
- BRASS
- RIDING STYLE:
- SNOW
- UNITS:
- 4 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- HEAD TYPE:
- SLOTTED
- PRODUCT NAME:
- JET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-675
MIKUNI
$14.55Precise fuel delivery is the foundation of reliable carburetor performance, and a worn or incorrect main jet compromises both throttle response and engine stability. This OEM Mikuni main jet (size 67.5) restores factory-spec fuel metering for consistent...KN100604675- SKU:
- KN100604675
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- HEAD TYPE:
- SLOTTED
- JET SIZE:
- 67.5
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-725
MIKUNI
$14.55Precision fuel delivery is non-negotiable when tuning your Mikuni carburetor for peak performance. Main jets directly control your air-fuel ratio under load, and running the wrong size robs you of horsepower while risking engine damage. This 4-pack gives...KN100604725- SKU:
- KN100604725
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- JET SIZE:
- 72.5
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- PRODUCT NAME:
- JET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- HEAD TYPE:
- SLOTTED
- MATERIAL:
- BRASS
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-75
MIKUNI
$14.55Precise fuel metering is the foundation of carburetor tuning, and a worn or incorrect main jet compromises your fuel mixture across the mid-range and high-throttle conditions. This 4-pack of genuine Mikuni main jets gives you multiple tuning options...KN10060475- SKU:
- KN10060475
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- JET
- TYPE:
- MAIN
- UNITS:
- 4 PACK
- HEAD TYPE:
- SLOTTED
- JET SIZE:
- 75
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$14.55 -
MIKUNI Main Jet - 4-Pack N100604-90
MIKUNI
$5.20Proper jetting is the foundation of carburetor tuning—and these OEM Mikuni main jets give you the precision fuel metering your engine demands across the RPM range. Whether you're fine-tuning a stock setup or dialing in a modified build, having a 4-pack...KN10060490- SKU:
- KN10060490
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- 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
- JET SIZE:
- 90
- MATERIAL:
- BRASS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$5.20
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.
