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Dirt Bike Carburertor Main Jets

Dirt Bike Carburertor Main Jets

Dirt Bike Carburertor Main Jets

Dirt Bike Carburetor Main Jets & Jet Needles for Mikuni Carbs on Honda, Yamaha & KTM at JJ Motorsports

Fine-tune your dirt bike's fuel mixture for optimal power and efficiency with premium carburetor main jets and jet needles from JJ Motorsports. Our selection includes high-precision brass main jets (sizes 100-140) and tapered jet needles designed for consistent mid-range performance, smooth throttle response, and easy tuning in motocross, enduro, and trail riding. Compatible with Mikuni VM series carbs on popular models like Honda CRF, Yamaha YZ/WR, Kawasaki KX, Suzuki RM, and KTM SX/EXC, these Japanese-made components ensure accurate metering, reduced lean spots, and reliable operation in dusty, high-RPM conditions. From 4/042 main jets for VM18/26 carbs to J8-series needles for mid-throttle control, stock up on the parts needed for a full carb rebuild or jetting upgrade.

Shop trusted brands like Mikuni for OEM-quality precision. Explore related categories such as dirt bike carburetor rebuild kits for complete maintenance or dirt bike air and fuel for reeds and filters.

Top Dirt Bike Carburetor Main Jets & Needles

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 Needle Jet VM38/41-P-4 MIKUNI Needle Jet VM38/41-P-4

    MIKUNI Needle Jet VM38/41-P-4

    MIKUNI

    $15.49
    Fine-tuning your carburettor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-P-4 gives you exactly that. This genuine Mikuni component allows you to dial in your air-fuel mixture at the 1/4 to 3/4 throttle range—the most...
    247P4
    SKU:
    247P4
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    FEATURES:
    FOR OE YAMAHA
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    JET SIZE:
    P-4
    MODEL:
    TYPE 247
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    NEEDLE
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Needle Jet VM38/41-P-6 MIKUNI Needle Jet VM38/41-P-6

    MIKUNI Needle Jet VM38/41-P-6

    MIKUNI

    $15.49
    Fine-tuning your carburetor's mid-range performance starts with the right needle jet. The MIKUNI VM38/41-P-6 gives you precise control over fuel delivery in the critical 1/4 to 3/4 throttle range—the zone where most real-world riding happens. If your...
    247P6
    SKU:
    247P6
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    JET SIZE:
    P-6
    MATERIAL:
    BRASS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    JET
    TYPE:
    NEEDLE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    FEATURES:
    FOR OE YAMAHA
    MODEL:
    TYPE 247
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Needle Jet VM38/41-Q-0 MIKUNI Needle Jet VM38/41-Q-0

    MIKUNI Needle Jet VM38/41-Q-0

    MIKUNI

    $15.49
    Fine-tuning your carburettor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-Q-0 delivers exactly that. This genuine Mikuni component lets you dial in optimal fuel delivery across the critical 1/4 to 3/4 throttle range—the...
    247Q0
    SKU:
    247Q0
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    MATERIAL:
    BRASS
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    MODEL:
    TYPE 247
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    FEATURES:
    FOR OE YAMAHA
    JET SIZE:
    Q-0
    TYPE:
    NEEDLE
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Needle Jet VM38/41-Q-2 MIKUNI Needle Jet VM38/41-Q-2

    MIKUNI Needle Jet VM38/41-Q-2

    MIKUNI

    $15.49
    Fine-tuning your carburetor's mid-range response requires precision—and the MIKUNI Needle Jet VM38/41-Q-2 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery at 1/4 to 3/4 throttle, where most of your riding...
    247Q2
    SKU:
    247Q2
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    FEATURES:
    FOR OE YAMAHA
    RIDING STYLE:
    SNOW
    MODEL:
    TYPE 247
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    JET SIZE:
    Q-2
    PRODUCT NAME:
    JET
    RIDING STYLE:
    UTV
    TYPE:
    NEEDLE
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Needle Jet VM38/41-Q-4 MIKUNI Needle Jet VM38/41-Q-4

    MIKUNI Needle Jet VM38/41-Q-4

    MIKUNI

    $15.49
    Fine-tuning your carburetor's mid-range performance requires precision, and the MIKUNI Needle Jet VM38/41-Q-4 delivers exactly that. This genuine Mikuni component gives you direct control over fuel delivery during the critical 1/4 to 3/4 throttle range,...
    247Q4
    SKU:
    247Q4
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    TYPE:
    NEEDLE
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    FEATURES:
    FOR OE YAMAHA
    JET SIZE:
    Q-4
    MODEL:
    TYPE 247
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Needle Jet VM38/41-R-0 MIKUNI Needle Jet VM38/41-R-0

    MIKUNI Needle Jet VM38/41-R-0

    MIKUNI

    $15.49
    Fine-tuning your carburetor's mid-range performance requires precision, and a worn or mismatched needle jet will leave you guessing at the throttle. The MIKUNI Needle Jet VM38/41-R-0 gives you direct control over fuel atomization in the critical 1/4 to...
    247R0
    SKU:
    247R0
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    FEATURES:
    FOR OE YAMAHA
    JET SIZE:
    R-0
    RIDING STYLE:
    STREET
    MODEL:
    TYPE 247
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    TYPE:
    NEEDLE
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $15.49
    Qty in Cart: 0
    Quantity:
    Price:
    $15.49
    Subtotal:
  • MIKUNI Pilot Jet #80 4-Pack VM22/210-80

    MIKUNI Pilot Jet #80 4-Pack VM22/210-80

    MIKUNI

    $14.55
    A properly sized pilot jet is essential for smooth idle quality, crisp throttle response, and predictable fueling across low-speed operation. Running an undersized or worn pilot jet leads to hesitation, poor cold starts, and difficult tuning. This...
    KM580
    SKU:
    KM580
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE COLOR:
    BRASS
    FEATURES:
    FOR VM CARBURETORS
    JET SIZE:
    80
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    UNITS:
    4 PACK
    HEAD DIAMETER METRIC:
    4.00 MM
    OVERALL LENGTH METRIC:
    14.00 MM
    TYPE:
    PILOT
    MATERIAL:
    BRASS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    COLOR/FINISH:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $14.55
    Qty in Cart: 0
    Quantity:
    Price:
    $14.55
    Subtotal:
  • MIKUNI Main Jet -  #170 - 4-Pack N102221-170

    MIKUNI Main Jet - #170 - 4-Pack N102221-170

    MIKUNI

    $14.55
    If you're tuning a carbureted engine for peak performance, jetting is everything—and a precise main jet is non-negotiable. The MIKUNI #170 main jet delivers the exact fuel metering your CV or Power Jet carburetor needs to maintain optimal air-fuel ratio...
    KN102221170
    SKU:
    KN102221170
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    MIKUNI
    RIDING STYLE:
    WATERCRAFT
    JET SIZE:
    170
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    UNITS:
    4 PACK
    $14.55
    Qty in Cart: 0
    Quantity:
    Price:
    $14.55
    Subtotal:
  • MIKUNI Main Jet - #195 - 4-Pack N102221-195

    MIKUNI Main Jet - #195 - 4-Pack N102221-195

    MIKUNI

    $14.55
    Upgrading your main jet is one of the most direct ways to dial in your carburetor's fuel delivery and unlock performance gains across your powerband. The MIKUNI #195 main jet provides precise fuel metering for CV and Power Jet carburetors, ensuring...
    KN102221195
    SKU:
    KN102221195
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    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:
    195
    MODEL:
    MIKUNI
    RIDING STYLE:
    WATERCRAFT
    MATERIAL:
    BRASS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $14.55
    Qty in Cart: 0
    Quantity:
    Price:
    $14.55
    Subtotal:
  • MIKUNI Main Jet - #92.5 - 4-Pack N102221-925 MIKUNI Main Jet - #92.5 - 4-Pack N102221-925

    MIKUNI Main Jet - #92.5 - 4-Pack N102221-925

    MIKUNI

    $5.20
    Fine-tuning your carburetor's fuel delivery is critical to achieving optimal performance and throttle response. The MIKUNI #92.5 Main Jet directly controls the fuel mixture under load, and running the correct size ensures your engine isn't running lean...
    KN102221925
    SKU:
    KN102221925
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    UNITS:
    4 PACK
    JET SIZE:
    92.5
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    MODEL:
    MIKUNI
    RIDING STYLE:
    WATERCRAFT
    MATERIAL:
    BRASS
    RIDING STYLE:
    OFF-ROAD
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet - #97.5 - 4-Pack N102221-975 MIKUNI Main Jet - #97.5 - 4-Pack N102221-975

    MIKUNI Main Jet - #97.5 - 4-Pack N102221-975

    MIKUNI

    $5.20
    Fine-tuning your carburetor's fuel delivery is critical for optimal performance and throttle response across your RPM range. The MIKUNI #97.5 main jet delivers precise fuel metering for engines that demand exact calibration—whether you're running stock...
    KN102221975
    SKU:
    KN102221975
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    UNITS:
    4 PACK
    JET SIZE:
    97.5
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    MIKUNI
    RIDING STYLE:
    WATERCRAFT
    MATERIAL:
    BRASS
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet #370 - 4-Pack 4/042-370

    MIKUNI Main Jet #370 - 4-Pack 4/042-370

    MIKUNI

    $14.56
    Proper jetting is the foundation of carburetor tuning—get it wrong and you're leaving power on the table or running too lean. The MIKUNI Main Jet #370 delivers the precise fuel metering your engine needs for optimal combustion across the RPM band. This...
    KM4042370
    SKU:
    KM4042370
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD TYPE:
    HEX HEAD
    JET SIZE:
    370
    MATERIAL:
    BRASS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL LENGTH IMPERIAL:
    0.47'
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    UTV
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    TYPE:
    MAIN
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH METRIC:
    12 MM
    UNITS:
    4 PACK
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #380 - 4-Pack 4/042-380

    MIKUNI Main Jet #380 - 4-Pack 4/042-380

    MIKUNI

    $14.56
    Proper jetting is the foundation of carburetor tuning—get it wrong and you're leaving power on the table or risking lean-condition damage. The MIKUNI Main Jet #380 is a direct fit for VM-series carburetors and TMX applications, allowing you to dial in...
    KM4042380
    SKU:
    KM4042380
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FOR VM CARBURETORS
    JET SIZE:
    380
    OVERALL DIAMETER IMPERIAL:
    0.24'
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    UNITS:
    4 PACK
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH IMPERIAL:
    0.47'
    PRODUCT NAME:
    JET
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #390 - 4-Pack 4/042-390

    MIKUNI Main Jet #390 - 4-Pack 4/042-390

    MIKUNI

    $14.56
    Precise fuel delivery is the foundation of carburetor tuning, and the right main jet makes the difference between optimal performance and rich-running inefficiency. The MIKUNI #390 main jet delivers the exact fuel metering your engine needs across the...
    KM4042390
    SKU:
    KM4042390
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    HEAD TYPE:
    HEX HEAD
    JET SIZE:
    390
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    4 PACK
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH IMPERIAL:
    0.47'
    OVERALL DIAMETER METRIC:
    6.00 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #420 - 4-Pack 4/042-420

    MIKUNI Main Jet #420 - 4-Pack 4/042-420

    MIKUNI

    $5.20
    Precise jetting is the foundation of carburetor tuning, and running the correct main jet size directly impacts your engine's fuel delivery, throttle response, and overall performance. The MIKUNI #420 main jet ensures optimal air-fuel mixture across your...
    KM4042420
    SKU:
    KM4042420
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    JET SIZE:
    420
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH IMPERIAL:
    0.47'
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    4 PACK
    OVERALL DIAMETER METRIC:
    6.00 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet #600 - 4-Pack 4/042-600

    MIKUNI Main Jet #600 - 4-Pack 4/042-600

    MIKUNI

    $14.56
    If your Mikuni carburetor is running lean or you're tuning for peak performance across different engine configurations, the right main jet is non-negotiable. This 4-pack of #600 main jets gives you the precision fuel metering your engine demands, whether...
    KM4042600
    SKU:
    KM4042600
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    PRODUCT NAME:
    JET
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    TYPE:
    MAIN
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH:
    12 MM (0,47')
    OVERALL LENGTH IMPERIAL:
    0.47'
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    FEATURES:
    FOR VM CARBURETORS
    JET SIZE:
    600
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    SNOW
    UNITS:
    4 PACK
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #620 - 4-Pack 4/042-620

    MIKUNI Main Jet #620 - 4-Pack 4/042-620

    MIKUNI

    $14.56
    Tuning your Mikuni carb demands precision—the right main jet size directly controls fuel delivery and air-fuel ratio at wide-open throttle. This 4-pack of #620 main jets gives you the exact sizing needed to dial in peak performance across VM and TMX...
    KM4042620
    SKU:
    KM4042620
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER IMPERIAL:
    0.24'
    HEAD TYPE:
    HEX HEAD
    JET SIZE:
    620
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    UNITS:
    4 PACK
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER METRIC:
    6.00 MM
    OVERALL LENGTH IMPERIAL:
    0.47'
    PRODUCT NAME:
    JET
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #640 - 4-Pack 4/042-640

    MIKUNI Main Jet #640 - 4-Pack 4/042-640

    MIKUNI

    $14.56
    Precise jetting is fundamental to carburetor tuning—undersized or oversized main jets compromise throttle response, fuel efficiency, and engine longevity. The MIKUNI #640 main jet delivers the calibrated fuel flow your engine demands across the...
    KM4042640
    SKU:
    KM4042640
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FOR VM CARBURETORS
    JET SIZE:
    640
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH IMPERIAL:
    0.47'
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    4 PACK
    OVERALL DIAMETER METRIC:
    6.00 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $14.56
    Qty in Cart: 0
    Quantity:
    Price:
    $14.56
    Subtotal:
  • MIKUNI Main Jet #65 - 4-Pack 4/042-65

    MIKUNI Main Jet #65 - 4-Pack 4/042-65

    MIKUNI

    $5.20
    Precise jetting is the foundation of carburetor tuning—and running the wrong main jet size costs you power, fuel economy, and engine reliability. The MIKUNI #65 main jet delivers the exact fuel metering your Mikuni carb demands across throttle loads,...
    KM404265
    SKU:
    KM404265
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD TYPE:
    HEX HEAD
    MATERIAL:
    BRASS
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ATV
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER METRIC:
    6.00 MM
    JET SIZE:
    65
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    OFF-ROAD
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL LENGTH IMPERIAL:
    0.47'
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • MIKUNI Main Jet #660 - 4-Pack 4/042-660

    MIKUNI Main Jet #660 - 4-Pack 4/042-660

    MIKUNI

    $5.20
    Fine-tuning your carburetor's fuel delivery is critical for optimal performance, throttle response, and engine reliability—and the main jet is where that precision starts. Whether you're dialing in a fresh build, compensating for altitude changes, or...
    KM4042660
    SKU:
    KM4042660
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OVERALL LENGTH:
    12 MM (0,47')
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    HEAD TYPE:
    HEX HEAD
    JET SIZE:
    660
    MATERIAL:
    BRASS
    OVERALL LENGTH METRIC:
    12 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    4 PACK
    FEATURES:
    FOR VM CARBURETORS
    OVERALL DIAMETER:
    6,00 MM (0,24')
    OVERALL DIAMETER IMPERIAL:
    0.24'
    OVERALL LENGTH IMPERIAL:
    0.47'
    OVERALL DIAMETER METRIC:
    6.00 MM
    PRODUCT NAME:
    JET
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    TYPE:
    MAIN
    $5.20
    Qty in Cart: 0
    Quantity:
    Price:
    $5.20
    Subtotal:
  • Total: items /

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Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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