Main nozzle

BMW Isetta engine

Main nozzle

€6.90

incl. 19% VAT plus shipping

in the accelerator pump, no. 120, new
Technical data
Category
BMW Isetta engine
Item number
1-1137
Condition
Reproduced new part
Weight
0 kg
In stock

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 accelerator pump regulates the amount of additional fuel during sudden acceleration to prevent a brief leanening of the mixture and thus a power dip.

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General information about this item

Product info
The new 120 main jet for the accelerator pump (Part No. 1-1137) provides a precisely metered amount of additional fuel during acceleration in the BMW Isetta carburetor. During restoration, replacing this jet helps eliminate typical transition problems such as stalling or acceleration hesitations. It should always be installed in a cleaned, reconditioned carburetor with an intact accelerator pump.

Database ID: 689 Accessed on: 18.06.2026 09:43 Data state: 22.05.2026 12:33 In stock since: 18.11.2025