CHOKE PLATE SCREW (2 REQDI VOKE YOKE SCRaN , CHOKE PLATE - LIFT ROD CHOKE PLATE SHAFT BOOSTER VENWH CHOKE PLATE LEVER - LEVER RETA'N'NG SCREW UPPER aODv SCREWS I6 REO'DI B y/ CHOKE PLATE SCREWS I4 REO'DI BYPASS CHOKE SHAFT AND LEVER ASSEMBLY '. CHOKE PLATE ROD PASS CHOKE PLATE CHOKE SHAFT SUPPORT AND BOOSTER ASSEMRL RETAINER GASKET WEIGHT / CHOKE SHAFT ' AND LEVER PUMP CHECK BALL I A EM LY - -- ' SS 3 FLOAT RETAINER cllan.-FLOAT SHAFT ~AIR HORN \O FLOAT SHAFT RETAINER RETAINER FUEL INLET NEEDLE I I I IDLE SPEED ~ ADJUSTING INLET NEEDLE SEAT CHOKE ARM ADJUSTMENT SCREW GASKET SCREW 2 SHIELD SPRING POSITIVE CLOSURE SPRING RESTRICTOR SCREW I2 REO'DI >& MAIN aoov CHOKE PULLDOWN DIAPHRAGM ASSEMBLY VACUUM HOSE RETURN . K I SPRING RETAINER NYLON CHOKE ARM LINKAGE LEVER W DIAPHRAGM LINK W I / 7 _ A. FAST IDLE CAM LINK , If? 3 I SPR , SHAFT RETAINER / _ we [9 III: . CHOKE HOUSING SHAFT - ' - ' (if: . u. 2 CHOKE HOUSING ~. , , LOCKING f x 3 MIXTURE (q. SCREW ENRICHMENT VALVE IDLE ADJUSTMENT - GASKET LOCKING , SCREW @ PLUG _ '. OVER 3 ' THROTTLE I PLATES V HOUSING SCREW LEVER SCREW .3 "Ea-D, SHIELD 3:225:25: ' A l HOT AI' INLET SHIELD SCREW . L SCREW I3 REQ'DI (2 "5 0 COVER SCREW ' THERMOSTATIC SPRING HOUSING Fig. 4.9 Model 21 50 2-V carburetor. as uSed on various V6 and V8 engines without high altitudncu ' View (Sec 2) .