Piaggio CM128501 Fuel Needle Carburetor Dell'Orto – Scooter 50 2T Piaggio, Vespa, Aprilia, Gilera

The Piaggio CM128501 is the fuel shut-off needle for the Dell'Orto carburetor, an original Piaggio spare part. It is the pin that works with the float: when the bowl is full, it closes the fuel supply; when it empties, it reopens it. In the catalog, the official name is "Fuel shut-off needle" and it appears at position 8 on the Carburetor diagram. It is a code common to almost all 50 2T vehicles of the group: Piaggio, Vespa, Aprilia, Gilera, and Scarabeo.

✓ Strengths

• Original Piaggio spare part – code CM128501, the same as fitted in production
• This is the part that solves the leaking bowl problem – when the needle is scratched or encrusted, the fuel no longer shuts off: the carburetor drips, the engine floods, and starts poorly
• It's inexpensive and can be changed in minutes – it's replaced by opening the bowl, without removing the carburetor from the engine
• Very broad compatibility – practically the entire Piaggio group's 50 2T range from 1998 to 2020
• To be combined with the float and the bowl gasket if the carburetor is old

Technical specifications

Compatibility

Also, from the group's historical catalogs: Piaggio Diesis 50 · Fly 50 2T · Free FL and PPTT · Liberty 50 2T RST and PTT (AU, DE, CH) · NRG Extreme, MC2, MC3, MC3 DD, MC3 DT · Typhoon 50 (US), 50 X, 50 XR, M.Y. 2004 and Typhoon 125 XR · Zip Catalyzed, Fast Rider RST, RST, RST disc brake, SP 50, SP H2O · Gilera DNA 50 and DNA GP Experience, Ice, Runner, Runner 50 SP, Runner 50 Poggiali, Runner 125 FX 2T, Runner 180 FXR 2T, Stalker · Vespa ET2 50 and LX 50 2T.

Recommended products

• Carburetor float – works in conjunction with the needle: if it's punctured or heavy, the level remains incorrect even with a new needle
• Bowl gasket – should be replaced every time it's opened
• Jets and carburetor overhaul kit – ask us for the code for your model
• Fuel filter – dirt from the tank is the #1 cause of the needle not closing

Who is it perfect for?

If your 50 smells of petrol, drips from the carburetor, floods, or only starts after a thousand kicks, nine times out of ten it's the fuel shut-off needle: a microscopic scratch on the tip and the fuel no longer stops. It's an inexpensive repair that prevents the tank from emptying into the bowl – and with it the risk of flooding the engine. It's worth changing it at every carburetor overhaul.

Frequently asked questions

What exactly is this part?
It is the fuel shut-off needle for the Dell'Orto carburetor, also called a needle valve or float needle: it closes the fuel supply when the bowl is full.

How do I know if it's the culprit?
Typical symptoms are fuel dripping from the carburetor, strong fuel smell, engine flooding, and difficult hot starting.

Is it original?
Yes: original Piaggio spare part, code CM128501.

Is the float included?
No. This item is the needle only: the float and bowl gasket are purchased separately.

Will it fit my 50?
Most likely yes: it is the code used on almost the entire 50 2T range of Piaggio, Vespa, Aprilia, and Gilera. Check the table and, if in doubt, send us your VIN.