Engine fuel system diagram with Solex Zenith 35/40 INAT carburetor with auxiliary starting device (BMW 5 Series E12)

Scheme of the engine fuel system with a Solex Zenith 35/40 INAT carburetor with an auxiliary starting device:

1 - battery; 2 - ignition switch; 3 - thermoelectric switch; 4 — bimetallic spring housing; 5 - time thermovalve; 6 — pneumatic drive of the throttle valve of the 1st chamber; 7 - front carburetor; 8 - rear carburetor; 9 - thermostatic valve; 10 — ignition advance hose of the vacuum regulator of the ignition distributor; 11 — ignition delay hose of the vacuum regulator of the ignition distributor; 12 — connecting rod of carburetors; 13 - auxiliary starting device.