Aftermarket 45 / 140 (3.11) for the SI carburetor, suitable for your Vespa Largeframe scooter. A list of the exact models can be found below in the drop-down menu under «suitable for the following models».
The bypass is a central component for the tuning of your SI carburetor and primarily influences the low to medium speed range. In the case of SI secondary throttles with a double designation, it is not only responsible for fuel metering: due to the design, the gasoline is premixed with air in the throttle body, which supports mixture preparation in the partial load range. The marking 45 / 140 stands for the ratio of the two figures. The smaller the calculated value, the «richer» your scooter runs at moderate engine speeds, the larger, the «leaner». Especially for longer trips in the half-throttle range, it is worth tuning up here.
| Manufacturer | Dell'Orto |
| Thread length | 5.5 mm |
| Material | Brass |
| Component group Carburetor | Spraying |
| Carburetor type | SI |
| Nozzle type | Secondary nozzle |
| Drive | Slot |
| Nozzle thread | M5x0.8 (standard thread) |
| Total length | 28.9 mm |
| Camouflaged | No |
| Vespa | Vespa PX, T5, Cosa - PX80 E Lusso · V8X1T · 1983–1993 Lusso / Arcobaleno , PX100E · VIX1T · India , P125X · VNX1T · 1977–1982 (Old PX) External Lock , P125X · VNX2T · 1981–1984 (Old PX) Internal Lock , PX125 E · VNX2T · 1982–1993 / Lusso / Arcobaleno , PX125 · VNX2T · 1993–1996 Classic , PX125 · VNX2T · 1997–1999 (Disc) , PX125 · ZAPM471 · 2001 Model Year Catalytic Converter , P150X · VLX1T · 1978–1993 , P150S · VBX1T · 1978–1990 , PX150 · ZAPM742 · 2001 Model Year Catalytic Converter , P200E · VSX1T · 1977–1984 (Ignition Switch on Steering Head) , PX200 · VSX1T · 1984–1993 Lusso / Arcobaleno , PX200 · VSX1T · 1993–1996 Classic , PX200 · VSX1T · 1997–1999 (Disc) , P80X · V8X1T · old (ignition switch on steering head) |
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Dell'Orto gasket set SI carburetor | Vespa Largeframe
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Dell'Orto auxiliary jet 50/160 (3.20) SI carburetor | Vespa Largeframe
Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Carburetor type: SI · Nozzle type: Secondary nozzle · Drive: Slot · Nozzle thread: M5x0.8 (standard thread) · Total length: 28.9 mm · Thread length: 5.5 mm · Camouflaged: No
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Dell'Orto main air correction jet 140 SI carburetor | Vespa Largeframe
Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Quantity: 1 pcs · Carburetor type: SI · Nozzle type: Air nozzle · Drive: Slot · Nozzle thread: M8x1.0 (Feingewinde) · Total length: 20.5 mm · Nozzle size: 140 · Thread length: 7.5 mm · Camouflaged: No · Piaggio OEM number: 193870
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Dell'Orto main air correction jet 150 SI carburetor | Vespa Largeframe
Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Quantity: 1 pcs · Carburetor type: SI · Nozzle type: Air nozzle · Drive: Slot · Nozzle thread: M8x1.0 (Feingewinde) · Total length: 20.5 mm · Nozzle size: 150 · Thread length: 7.5 mm · Camouflaged: No
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Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Carburetor type: SI · Nozzle type: Secondary nozzle · Drive: Slot · Nozzle thread: M5x0.8 (standard thread) · Total length: 28.9 mm · Thread length: 5.5 mm · Camouflaged: No
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Dell'Orto auxiliary jet 52/120 (2.31) SI carburetor | Vespa Largeframe
Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Carburetor type: SI · Nozzle type: Secondary nozzle · Drive: Slot · Nozzle thread: M5x0.8 (standard thread) · Total length: 28.9 mm · Thread length: 5.5 mm · Camouflaged: No
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Manufacturer: Dell'Orto · Material: Brass · Component group Carburetor: Spraying · Carburetor type: SI · Nozzle type: Secondary nozzle · Drive: Slot · Nozzle thread: M5x0.8 (standard thread) · Total length: 28.9 mm · Thread length: 5.5 mm · Camouflaged: No
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Dell'Orto main jet (80 - 140 of your choice) SI carburetor
Manufacturer: Dell'Orto · Camouflaged: No · Component group Carburetor: Spraying · Material: Brass · Quantity: 1 pcs · Carburetor type: SI · Nozzle type: Main nozzle · Total length: 10 mm · Piaggio OEM number: 089145 · Piaggio OEM number: 93660 · Piaggio OEM number: 94090 · Piaggio OEM number: 97436 · Piaggio OEM number: 120520 · Piaggio OEM number: 132368 · Piaggio OEM number: 132453 · Piaggio OEM number: 150047 · Piaggio OEM number: 150474
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