Main parts of the Solex 38 POSI carburetor:
1 - carburetor body; 2 — air jet of the mixture quality corrector; 4 - idle fuel jet; 8 - main air jet; 9 — accelerator pump diaphragm; 10 — accelerator pump spring; 11 — accelerator pump cover; 13 — diffuser; 17 — carburetor base; 18 — throttle return spring; 21 — throttle control lever; 25 — idle mixture quantity adjusting screw; 27 — mixture quality (composition) adjustment screw; 30 — accelerator pump drive rod; 43 — air damper control lever; 51 - float; 52 — float axis; 54 - cover gasket; 55 — carburetor cover; 58 - needle valve.