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188F-54 GX390/420 Clone Idle Adjustment Screw
188F-54 GX390/420 Clone Idle Adjustment Screw
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188F-54 GX390/420 Clone Idle Adjustment Screw

Part Number: 188F-54
Your Price: $2.95
Availability: In Stock.

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Description

This is an original “Clone” of the Honda GX390 Carburetor Idle Speed Screw for the Ruixing/SP Carburetors. 

The Idle Speed Screw holds the throttle shutter open slightly to allow air into idle. The more the throttle shutter is open the higher the rpm or engine speed of the engine will be. The idle speed screw controls the engine’s speed or RPMs at idle

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