1. Home
  2. Engines
  3. HF GX390/420/440/460 Engines
  4. Carburetors
  5. OEM Carburetor
  6. 188F-59 GX390/420 Clone Idle Speed Screw
188F-59 GX390/420 Clone Idle Speed Screw
188F-59 GX390/420 Clone Idle Speed Screw
Write a Review

188F-59 GX390/420 Clone Idle Speed Screw

Part Number: 188F-59
Your Price: $1.12
Availability: In Stock.

Send to:

*We'll ask for shipping info at checkout

Description

This is an original “Clone” of the Honda GX390 Idle Mixture Screw on Ruixing Carburetors. 

The idle mixture screw controls the fuel mixture for the engine to idle. The idle mixture works with the idle speed screw to set the idle engine speed or RPMs. The idle mixture screw allows you to change the low-speed jet for more performance while allowing you to adjust the idle. Many newer carburetors no longer have the idle mixture screw due to EPA regulations. If you are racing the GX390 carburetor uses the ones with an idle mixture screw for the most performance potential. 

Related Items

Recently Viewed Items