Idle Screw

Description

IDLE SCREW

Extra-long carburetor idle mixture screw for 40-44mm VM round slide carburetors

• It is often referred to as the idle mixture screw, which adjusts the air-fuel ratio at idle. 

• The idle speed screw should be adjusted carefully, typically no more than 1.5 turns in for optimal performance. 

• Proper adjustment of the idle mixture screw is essential for smooth engine operation and can affect fuel efficiency.

  
  For specific adjustments, always refer to the service manual for your particular carburetor model.