Hpi Racing 101643 Idle Needle Valve Screw

Hpi Racing 101643 Idle Needle Valve Screw

This is a genuine HPI Racing replacement idle needle valve screw for compatible HPI nitro engine carburetors. The idle needle controls the fuel mixture at low throttle, so a clean, undamaged screw is essential for a smooth, reliable idle.

If your idle adjustment has become inconsistent or the screw is worn, this factory-spec replacement restores accurate low-end tuning.

• Genuine HPI Racing replacement part #101643
• Idle needle valve screw
• Factory-spec carburetor component
• Restores accurate idle mixture adjustment
• Installs during routine carburetor service