Main jet / nozzle - GG 0115 - for Solex 40 PII carburettor. Porsche 356 / 912  ❭  61610093500

Main jet / nozzle - GG 0115 - for Solex 40 PII carburettor.
Jet (calibre 115) — is designed for Solex 40 PII / 44 PII carburettors in Porsche 356B/C models. Engineered to match original specification, it installs easily and ensures accurate fuel flow and throttle response. Ideal for rebuilds or maintenance to preserve authentic performance and drivability.
Sold each, 2 required per engine.

Fits:
Porsche 356 B  1600 S90 1960 - 1963
Porsche 356 C  SC 1964 - 1965

Diagram ref no 23

The jet (nozzle) controls the fuel metering in a section of the carburettor — by providing a calibrated aperture for fuel flow, it helps maintain the correct air-fuel mixture at a given throttle or load.

 It ensures consistent fuel delivery in the mid or high-load range (depending on exactly which circuit the “115” jet pertains to) which in turn supports smooth throttle response, proper acceleration, consistent idle behaviour and correct mixture under varying conditions.

A correctly spec’d jet helps avoid lean or rich conditions that can cause hesitation, flat spots, unstable idling, poor throttle tip-in or excessive fuel consumption.

In a restoration or rebuild context: replacing worn, damaged or incorrect jets ensures the carburettor operates as originally designed, which is especially important in period-correct classic vehicles.

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