MIKUNI 4-042-660 Carburetor Hex Head Jet 4/042-660 4-PACK

( Brand: Mikuni ), ( Part Type: Jet Carburetor Head ), ( Manufacturer Part Number: 4/042-660 ), ( Warranty Details: See Manufacturer )

Review MIKUNI 4/042-660 Carburetor Hex Head Main Jet 4/042 #660 4-pack fits 660

Introducing the Mikuni 4/042-660 Carburetor Hex Head Jet 4-Pack, a high-performance replacement jet set designed for Mikuni carburetors. This jet set is specifically engineered for the 4/042 series carbs, model number 660.

Each jet in this 4-pack is meticulously crafted with precision hex heads, ensuring a secure and snug fit within your Mikuni carburetor. The jets are made from top-quality materials, delivering optimal fuel flow and air-fuel mixture for enhanced engine performance.

1. Needle Jet (Main): This jet is responsible for regulating the fuel flow to the carburetor's main circuit. The precise design of the Mikuni needle jet ensures efficient fuel delivery for optimal engine response.

2. Pilot Jet: The pilot jet controls the fuel flow to the carburetor's pilot circuit, which supplies fuel to the engine during idle conditions. The Mikuni pilot jet is engineered to provide a consistent fuel supply for smooth idling and stable engine performance.

3. Idle Jet: The idle jet regulates the fuel flow to the idle circuit, allowing for fine-tuning of the engine's idle speed. Mikuni's idle jet is designed to provide accurate fuel delivery for a stable and responsive idle.

4. Needle Jet (Power): This jet regulates the fuel flow to the carburetor's power circuit, which supplies fuel during wide-open throttle conditions. Mikuni's power needle jet is designed to deliver ample fuel for maximum power output.

By upgrading to the Mikuni 4/042-660 Carburetor Hex Head Jet 4-Pack, you can expect improved engine performance, enhanced fuel efficiency, and smoother idle and throttle response. These jets are an excellent choice for racers, performance enthusiasts, or anyone seeking to optimize their Mikuni carburetor setup.

To install, simply remove the existing jets from your Mikuni carburetor and replace them with the new Mikuni 4/042-660 Carburetor Hex Head Jet 4-Pack. No additional tools or modifications are required for installation.

Upgrade your Mikuni carburetor and experience the difference that Mikuni's high-performance jets can bring to your engine. Order the Mikuni 4/042-660 Carburetor Hex Head Jet 4-Pack today!

The Mikuni 4/042-660 carburetor hex head jets (part number 4/042 660 in a 4-pack) are commonly used for various applications in the automotive industry, particularly for motorcycles and small engines. Here are some potential pros and cons of purchasing these jets:

1. Mikuni is a well-known and reputable manufacturer of carburetors and related components.

2. These jets are designed for easy installation and replacement.

3. They offer good fuel efficiency and can help improve engine performance.

4. The hex head design allows for easy adjustment and fine-tuning of the carburetor.

5. The 4-pack allows users to have spare jets on hand for future replacement needs.

1. These jets may not be a direct fit for all applications, and some modifications may be required for installation.

2. The price point may be higher than some other aftermarket jet options.

3. Some users have reported that the jets may not be perfectly matched in size, which could require additional adjustments to ensure proper fuel delivery.

The Mikuni 4/042-660 carburetor hex head jets offer several benefits, including a reputable brand, easy installation, and potential performance improvements. However, they may not be a perfect fit for all applications and could require some additional adjustments or modifications for optimal performance. Additionally, the price point may be higher than some other aftermarket jet options. Ultimately, the decision to purchase these jets depends on the specific needs and budget of the user.

If you are looking for high-quality, easy-to-install carburetor jets from a reputable manufacturer, the Mikuni 4/042-660 jets may be a good option for you. However, be sure to double-check the compatibility with your specific application and consider the potential need for additional modifications or adjustments. If cost is a concern, you may want to explore other aftermarket jet options before making a final decision.

part # 4042660 prices

• $13.21-$20.32

specifications iodacarb:

• brand: Mikuni
• part type: Jet Carburetor Head
• manufacturer part number: 4/042-660
• warranty details: See Manufacturer

offer iodacarb:

• availability: In Stock
• started: August 15, 2025
• sold: 0
• quantity: 14
• options: Ship-to-home

returns iodacarb:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller iodacarb:

• rating: 99.3%
• # reviews: 622070

general iodacarb:

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

payments iodacarb:

• wallet: Google-pay
• other
• credit card: Mastercard

shipping iodacarb:

• class: Standard
• transit: 4-7 Days
• service: Standard
• cost: $0.00
• type: Fixed

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