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Main nozzle

BMW 700 carburetor and air filter

Main nozzle Zoom

Main nozzle

€6.90

incl. 19% VAT plus shipping

120
Technical data
Category
BMW 700 carburetor and air filter
BMW part number
....0039769
Item number
B7-03-0480
Weight
0 kg
Availability on request

No instant purchase: after your request you will receive a personal quote including shipping costs.

Philipp Schäper
Philipp Schäper BMW Isetta specialist Question about this item?
In stock Almost all parts available directly from stock
Original parts Original parts from workshop inventory
Specialists The specialists for BMW Isetta, 600 & 700
Worldwide shipping By DHL, UPS or freight forwarder — safely packed
Application

A main jet in the carburetor controls the amount of fuel injected into the air stream, thereby directly influencing the mixture formation, performance, and exhaust emissions of the engine.

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General information about this item

Product info
The main jet 120 (Part No. B7-03-0480) regulates the fuel flow in the main system of the BMW 700’s carburetor, thereby influencing the fuel-air mixture under medium to high loads. As part of a restoration, it is recommended to replace worn or modified jets with correctly calibrated new parts to restore smooth engine operation and the original tuning.

Database ID: 4581 Accessed on: 02.08.2026 23:34 Data state: 22.05.2026 12:33 In stock since: 18.11.2025