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Mikuni 4/042-250 Main Jet Large Hex Carburetor

Part of: Mikuni Main Jet Large Hex Carburetor

Other options in this family: Mikuni 4/042-100 Mikuni 4/042-330 Mikuni 4/042-340 Mikuni 4/042-580

Manufacturer

Picture for manufacturer Mikuni

Part Number

4/042-250
13 reviews
Sale Price

$5.26

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Mikuni 4/042-250 is a precision-engineered main jet designed for use in most Mikuni carburetors. This large hex-style jet features a 2.50mm orifice size, providing precise fuel metering for optimal engine performance and tuning.

Key Features:

  • Large hex head design for easy installation and removal
  • 2.50mm jet orifice for accurate fuel flow control
  • Compatible with most Mikuni VM, TM, and HS carburetor models
  • Precision-manufactured brass construction for durability and consistent performance
  • Part of the Mikuni 4/042 series main jet family

Main jets are critical tuning components that control the fuel mixture at higher throttle openings. This jet is ideal for carburetor rebuilds, performance tuning, or adjusting fuel delivery for modifications such as exhaust or air filter upgrades. The large hex design provides a secure grip for wrench installation, reducing the risk of damage during jet changes.

Helpful but calling customer service I kept getting cut off. Finally talked to Hector and he was very helpful.

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It's nice to be able to use PayPal or go through Amazon to order and not have to enter your credit card or address onto another site.

Great service and product. A+!

Great price! Super easy and I love that you give the ability to pay through Amazon.com! I feel very comfortable and safe using Amazon.

I went through the Amazon payment option and it was a hassle.

Easy to order on your site.

Good

Placed order for a cortex programmer for my 2004 duramax. Best price with fast free shipping. I couldn't ask for a better company to do business with.

Great service when calling in to ask technical questions regarding the proper part for my 2006 Winnebago. They shipped quickly and processed the transaction promptly.<br><br>Thanks <br>Jason

The site was super easy to use and had exactly the product I needed.

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