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Clone 390-420-460 RuiXing Stock Carburetor
188F-14100-A GX390/420 Ruixing Clone Stock Carburetor
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Clone 390-420-460 RuiXing Stock Carburetor

Part Number: 188F-14100-A
Online Price: $22.95
Adjustable Ruixing Carburetor – Fits GX390 & Big Block Clone Engines
Availability: In Stock.

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Description

Stock Ruixing Carburetor for Honda GX390, Predator 420 & Big Block Clone Engines


This OEM-style Ruixing carburetor is a direct replacement for most Honda GX390-style and Big Block Clone engines, including Predator 420, Wildcat 460, and other 390cc–460cc variants.


Unlike many stock carburetors limited by emissions restrictions, this version features a fully adjustable idle mixture screw—allowing for more precise tuning and improved engine performance, especially under varying load, elevation, or weather conditions.


Perfect for stock or mild performance builds where adjustability is key, this Ruixing carb provides a great baseline for engines that need more than a factory-lean setup but don't require a fully blueprint-prepped or race carburetor.


Carburetor Specifications:

  • Throttle Bore: 27mm
  • Venturi Diameter: 20mm
  • Idle Mixture Screw: Included and adjustable
  • Mounting Pattern: Standard GX390/Clone bolt spacing
  • Choke and Throttle Linkage: Compatible with OEM-style setups


Ideal For:

  • GX390 and GX390-style big block clone engines
  • Predator 420, Wildcat 460
  • Mildly modified or stock-appearing performance engines
  • Applications needing more tuning flexibility than EPA-locked carbs


 Note: This is a stock-form carburetor and has not been blueprinted or flow-tested for high-performance builds. It is ideal as a high-quality, tunable stock replacement.

FAQ

Q1: What makes this carburetor different from other GX390 stock carbs?
A: Unlike many EPA-restricted stock carbs, this one features an adjustable idle mixture screw, giving you better control over tuning, especially at idle and low throttle.


Q2: Is this carburetor pre-tuned or blueprinted?
A: No. This is a standard stock-style replacement carburetor. It has not been blueprinted or modified for high-performance builds. However, it's perfect for mildly modified engines and offers a good foundation for further tuning.


Q3: Will this carb fit a Predator 420 or Wildcat 460?
A: Yes. It fits most GX390-style Big Block Clone engines, including Predator 420, Wildcat 460, and other 390cc–460cc variants using a 27mm throttle bore and standard GX390 bolt pattern.


Q4: Does this carburetor come with a gasket or insulator?
A: No. It’s sold as the carburetor only. Gaskets, spacers, and insulators are sold separately if needed for installation.


Q5: Can this carburetor be used for racing?
A: It's not race-prepped, but it works well on stock-appearing or mild performance builds. For serious racing applications, consider a blueprinted carburetor or a purpose-built performance model.

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