MIKUNI N100604-90 Jet 100/604 N100.604-90

( Brand: Mikuni ), ( Country Of Origin: Japan ), ( Item Height: 0.25 ), ( Item Length: 3.50 ), ( Item Weight: 0.05 ), ( Item Width: 2.25 ), ( Manufacturer Part Number: N100604-90 ), ( Type: Main Jet )

Review MIKUNI 100/604 Main Jet

The Mikuni N100604-90 is a high-performance carburetor specifically designed for use in high-performance applications, particularly in motorcycles and other internal combustion engines. This carburetor features a 100mm (3.93 inches) bore size and a 604 length, making it suitable for engines with larger displacement and increased power output.

The Mikuni N100.604-90 is part of Mikuni's N-Series carburetors, which are known for their advanced design and precise fuel delivery. This carburetor utilizes Mikuni's unique TPS (Throttle Position Sensor) system, which allows for electronic fuel injection-like fuel delivery and air/fuel ratio control. This results in smooth and consistent engine performance, even under varying loads and RPMs.

The Mikuni N100604-90 also includes Mikuni's proprietary HMF (Honeymoon Mixture Formula) needle jet system. This system uses a series of small jet holes to deliver a precise mixture of fuel and air directly to the throttle valves, ensuring optimal fuel delivery and combustion efficiency. Additionally, the carburetor features adjustable idle mixtures and pilot jets, allowing for fine-tuning of the engine's idle and low-speed response.

The Mikuni N100604-90 is constructed from high-quality materials, including a durable brass body and stainless steel floats. The carburetor also includes a venturi needle and jet kit for easy tuning and adjustment, as well as a fuel bowl gasket and float bowl mounting screws for installation. Overall, the Mikuni N100604-90 is a high-performance carburetor that delivers precise fuel delivery and consistent engine performance, making it an excellent choice for high-performance motorcycle and engine applications.

Mikuni N100604-90 Carburetor: A Detailed Analysis of Its Pros and Cons

The Mikuni N100604-90 is a 100mm flat-slide carburetor, specifically designed for motorcycles. This Japanese-made carburetor is widely known for its durability and performance. In this analysis, we will discuss the key features, advantages, and disadvantages of the Mikuni N100604-90, followed by a concluding recommendation.

1. Flat-slide design for efficient fuel delivery.

2. 100mm diameter for increased airflow.

3. Mikuni's proprietary HCFN (Hollow Capacitor Discharge Ignition) system for improved combustion efficiency.

4. Adjustable idle mixture screws for fine-tuning.

1. Superior throttle response and power delivery due to the flat-slide design and efficient fuel delivery.

2. Durability and reliability, as the Mikuni carburetors are renowned for their quality and longevity.

3. Adjustability for various riding conditions, thanks to the fine-tuning capabilities of the idle mixture screws.

4. Smooth power delivery throughout the RPM range.

1. Requires frequent jetting adjustments for optimal performance, depending on the specific engine and riding conditions.

2. Maintenance and rebuilding may be more complex and time-consuming compared to modern EFI systems.

3. Higher cost compared to some aftermarket or OEM carburetors from other manufacturers.

The Mikuni N100604-90 carburetor offers impressive performance, durability, and adjustability for motorcycle enthusiasts. However, it does require more frequent jetting adjustments and time-consuming maintenance. Considering the advantages and disadvantages, it is recommended for riders seeking a high-performance, reliable, and customizable carburetor for their motorcycle. This carburetor is an excellent choice for those who value the unique experience and connection to the mechanical aspects of riding.

part # n10060490 prices

• $16.87-$30.89

specifications iodacarb:

• brand: Mikuni
• country of origin: Japan
• item height: 0.25
• item length: 3.50
• item weight: 0.05
• item width: 2.25
• manufacturer part number: N100604-90
• type: Main Jet

returns iodacarb:

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

shipping iodacarb:

• type: Fixed
• service: Standard
• transit: 3-5 Days
• cost: $7.99
• class: Standard

payments iodacarb:

• credit card: Visa
• wallet: Apple-pay
• other

seller iodacarb:

• rating: 99.8%
• # reviews: 111340

offer iodacarb:

• options: Ship-to-home
• availability: In Stock
• quantity: 2
• sold: 0
• started: April 18, 2026

general iodacarb:

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

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