1. Motorcycle Carburetors Offers
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  3. MIKUNI N100604-142.5

MIKUNI N100604-142.5 Jet 100/604 N100.604-142.5

N100.604-142.5 Mikuni N100604-142.5 100/604 Main Jet -

( Brand: Mikuni ), ( Type: Main Jet ), ( Size: 142.5 ), ( Item Height: 0.25 ), ( Manufacturer Part Number: N100604-142.5 ), ( Item Length: 3.50 ), ( Item Weight: 0.05 ), ( Item Width: 2.25 ), ( Country Of Origin: Japan ), ( California Prop 65 Warning: Warning )

Review MIKUNI 100/604 Main Jet

The Mikuni N100.604-142.5 is a high-performance carburetor specifically designed for racing applications. It is part of Mikuni's N Series line, which is renowned for its advanced technology and precise fuel delivery. This particular carburetor model is suitable for engines with a displacement of around 1,000cc and is identified by the part number N100.604-142.5.

The Mikuni N100.604-142.5 features a 100mm throat diameter and a 45mm venturi diameter, which ensures optimal fuel flow and efficient combustion. Its unique design includes a flat-slide accelerator pump, which provides a consistent fuel delivery during acceleration, ensuring smooth power delivery. The carburetor comes with a 12-hole jet (N100604-142.5) that is specifically designed for this model.

The Mikuni N100.604-142.5 is constructed from high-quality materials, including a lightweight and durable aluminum body and stainless steel components. It also features an adjustable idle mixture screw, allowing for fine-tuning of the engine's idle speed and mixture for optimal performance. The carburetor's float bowl has a generous capacity, ensuring a consistent fuel supply to the engine even during high-speed operation.

This Mikuni carburetor includes a number of advanced features, such as a self-bleeding system, which eliminates the need for manual carburetor bleeding. It also comes with a venturi needle jet kit (N101-150), which allows for easy adjustment of the main jet size for various fuel and atmospheric conditions. The carburetor is also compatible with various Mikuni fuel systems, including the HSR and Dual Avenger systems.

The Mikuni N100.604-142.5 is a high-performance carburetor that is ideal for racing applications where precise fuel delivery and optimal power output are essential. Its advanced design, durable construction, and easy adjustability make it a top choice among racers and performance enthusiasts. Whether you are building a high-performance engine or looking to upgrade your existing setup, the Mikuni N100.604-142.5 is a carburetor that delivers the power and performance you need.

The Mikuni N100.604-142.5 carburetor, part number N100604-142.5, is a common choice for motorcycles requiring a 100mm, 604 jet size carburetor. Here are some pros and cons that might help you make an informed decision about purchasing this carburetor.

Pros:

1. Mikuni is a well-established brand with a reputation for producing high-quality, reliable carburetors.

2. The N100.604-142.5 model offers good fuel economy and smooth power delivery.

3. It is suitable for various motorcycle applications and can be found in aftermarket parts catalogs for various makes and models.

4. Mikuni carburetors are known for their ease of tuning and adjustability.

5. The Mikuni N100.604-142.5 comes with a venturi jet, main jet, and pilot jet, allowing for easy customization.

Cons:

1. Mikuni carburetors may require more frequent jetting adjustments compared to some other brands.

2. The installation process can be complex, particularly for those without experience in motorcycle carburetor swaps.

3. Mikuni carburetors can be more expensive than some other brands.

4. The lack of electronic fuel injection or EFI-related features may be a disadvantage for some riders.

In conclusion, the Mikuni N100.604-142.5 carburetor is a high-quality option for motorcycles that require a 100mm, 604 jet size carburetor. Its advantages include the brand reputation, smooth power delivery, customizability, and ease of tuning. However, potential disadvantages include the need for frequent jetting adjustments, complex installation process, and higher cost compared to some other brands.

If you are comfortable with the installation process and are willing to invest in a high-performance carburetor, the Mikuni N100.604-142.5 is an excellent choice. However, if you prefer a simpler and more cost-effective solution, you may want to consider alternative brands or electronic fuel injection systems.

part # n1006041425 prices

  • $10.95-$30.89

specifications iodacarb:

  • brand: Mikuni
  • type: Main Jet
  • size: 142.5
  • item height: 0.25
  • manufacturer part number: N100604-142.5
  • item length: 3.50
  • item weight: 0.05
  • item width: 2.25
  • country of origin: Japan
  • california prop 65 warning: Warning

returns iodacarb:

  • time: 60 Days
  • policy: Returns Accepted
  • paid by: Seller

general iodacarb:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors

offer iodacarb:

  • options: Ship-to-home
  • quantity: 2
  • started: May 28, 2026
  • availability: In Stock
  • sold: 0

payments iodacarb:

  • other
  • wallet: Paypal
  • credit card: Discover

seller iodacarb:

  • rating: 99.8%
  • # reviews: 113831

shipping iodacarb:

  • cost: $7.99
  • type: Fixed
  • transit: 2-5 Days
  • service: Standard
  • class: Standard
type: main jet, size: 142.5, item height: 0.25, item length: 3.50, item weight: 0.05, item width: 2.25, country of origin: japan, california prop 65 warning: warning,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > carburetors, sku: 11875804229171871,

Mikuni N100604-142.5 Is Similar To:

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5 offers $10.95–$30.89 USD
  • Offer #1: $10.95 price + $7.99 delivery = $18.94* total. Weight0.05 lbs. Mikuni N100.604 Main Jet for RS and HS Carbs.+$7.99 shipping
  • Offer #2: $30.89 price + free delivery = $30.89* total. Fits Mikuni carburetors VM16, HS40, HSR42/45/48, RS, TM, VM29/33 Smoothbores, OE fitments only apply if bike has stock Mikuni carburetor, Made in Japan.FREE SHIPPING
  • Offer #3: $27.75 price + free delivery = $27.75* total. Mikuni Large Round Main Jets 4/Pk #142.5.FREE SHIPPING
  • Offer #4: $31.99 price + free delivery = $31.99* total. Fits RS and HS.FREE SHIPPING
  • Offer #5: $5.69 price + $5.69 delivery = $11.38* total. UNITS 1 each. Fits Mikuni carburetors VM16, HS40, HSR42/45/48, RS, TM, VM29/33 Smoothbores.+$5.69 shipping