Needle Valve, 4-Sided -SI Carbs for Scooters & Mopeds

Four-Sided (4-Sided) SI Carburetor Needle Valve for Scooters and Mopeds

This needle valve has a four-sided design and fits SI carburetors on many scooters and mopeds. It meters fuel into the carb so the engine gets the right mix of fuel and air. Found among our scooter carburetors & jets, a fresh valve often cures hard starts and a rough idle, bringing back crisp throttle response.

What It Does

The valve controls how much fuel enters the carburetor bowl, which keeps the air-fuel mix where it should be. If the engine bogs down or surges, a worn needle valve is a common cause and worth replacing.

Specifications

• Position: Carburetor
• Fits: Stella 150 2T and vintage large-frame Vespa (VBA, Sprint, Rally, P/PX) with Dell'Orto/Spaco SI carburetors

Fitment

Fits:

• Stella 150 2T
• Vespa VNL GT/GTR
• Vespa VLB Sprint
• Vespa VNC 125 Super
• Vespa VBA
• Vespa VBB
• Vespa VBC 150 Super
• Vespa VSD Rally 180
• Vespa VNB
• Vespa VSE Rally 200
• Vespa VLA GL150
• Vespa P/PX (VSX P/PX 200 E, VLX P/PX 150, VNX P/PX 125)

Picking the right one: Make sure your carburetor is an SI type and takes a 4-sided needle.

More parts: Scooter Carburetors & Jets · Scooter Cylinder Heads & Valves · Scooter Parts