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Main Jet Kit for Wildcat WC22 Carburetor
EC jet Kit and Box for VM22 Chinese Carburetors
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Main Jet Kit for Wildcat WC22 Carburetor

Part Number: WC-MJ-K
Online Price: $27.99
Main Jet Kit for Wildcat WC22 & VM22 26mm Round Slide Carburetors – 105 to 135 Jet Sizes
Availability: In Stock.

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Description

Main Jet Kit for Wildcat WC22 & VM22 (Chikuni) 26mm Round Slide Carburetors


Unlock the full tuning potential of your Wildcat WC22 or VM22-style 26mm round slide carburetor with this precision main jet kit. Whether you're dialing in performance at wide-open throttle or improving fuel delivery across the rev range, these jets are essential for carburetor tuning.


The main jet primarily controls fuel delivery at full throttle, but it also influences midrange and even low-speed performance on many clone-style VM22 (Chikuni) carburetors. Upgrading or adjusting your main jet allows you to match fuel flow to your engine’s demands, modifications, or elevation changes.


Included Main Jet Sizes:
105, 115, 120, 125, 130, 135


This kit is designed to work with Wildcat WC22 carburetors sold by EC Carburetors and most knock-off VM22 (Chikuni-style) 26mm round slide carbs. Note: Fitment is not guaranteed on carburetors purchased through eBay, Amazon, or generic parts resellers due to design inconsistencies.


Key Features:

  • Precision main jets for tuning Wildcat WC22 and VM22 clone carburetors
  • Improves fuel delivery at wide-open throttle and affects midrange/low-speed response
  • Ideal for performance builds, altitude tuning, or modified engines
  • Includes six commonly used jet sizes (105–135)
  • Compatible with Wildcat WC22 carburetors from EC Carburetors and most VM22 clones
  • Easy to install; essential for fine-tuning your engine’s air/fuel ratio

FAQ

Q1: What does the main jet control in a carburetor?
A: The main jet primarily controls fuel delivery at wide-open throttle but also affects midrange performance and has a minor influence on low-speed fueling in many clone VM22-style carburetors.


Q2: Which carburetors is this jet kit compatible with?
A: It is designed for Wildcat WC22 26mm slide carburetors from EC Carburetors and most knock-off VM22 (Chikuni-style) 26mm carburetors.


Q3: What jet sizes are included in this kit?
A: This kit includes six main jets in the following sizes: 105, 115, 120, 125, 130, and 135.


Q4: Will this kit fit a carburetor I bought on Amazon or eBay?
A: Fitment is not guaranteed for carburetors purchased from generic online retailers. Some clones vary in internal design or thread pitch, so compatibility is best with Wildcat WC22 or EC-verified VM22 carbs.


Q5: How do I choose the right main jet size?
A: Jet sizing depends on your engine mods, altitude, and air/fuel needs. Start with the stock jet size, then test larger or smaller jets based on spark plug color, throttle response, and performance under load.


Q6: Is this kit useful for modified engines?
A: Absolutely. Any engine with upgraded intake, exhaust, cam, or compression typically requires jetting changes to maintain the proper air/fuel ratio.

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