PARTS SHOWN ARE FOR IDENTIFICATION ONLY REFER TO PARTS LIST GROUP 3 725 FOR SPECIFIC PART NUMBER I0 Y 2 T QJ 8 I6 5 W w eff Us 9 Q I I is O Q I 1 l I4 I t G Q y T 0 4 g G W Q B U zo I W I 1 9 AIR Roan mars H0 E PARTS 14 Q 5 IU 1 2 X 2 0 j 5 I In zag 38 O g Q 0 52 I OO L I 3 49 Eg 4 I 9 e 26 Il O Q 40 w 1 J 6 36 7 zz 4I 47 5 2 QQ Q 24 g 0 43 2 J 32 29 BJ I 4 T V Fl at T t e TYIPICAL ROCHESTER CARBURETOR MODEL MV MONOJET 1970 71 250 ENGINE KEY GROUP DESCRIPTION KIEY GROUP DESCRIPTION I 1 3 730 AIR HORN 33 3 745 FLOAT Carb Fuel I 2 3 730 SCRIEW Air Horn Long 34 3 747 PIN Float Hinge I 3 3 730 SCREW Air Horn Short 35 3 858 PISTON Power 4 3 730 BRACKET Air Clnr Stud 36 3 859 SPRING Power Piston 5 3 403 SCREW Bracket Atch 37 3 858 ROD Power Piston 6 N S S KIT Idle Vent Valve 38 3 806 ROD 81 SPRING Metering 7 3 738 GASKET Air Horn 39 3 740 NUT Fuel Inlet Filter I 8 3 752 SHAFT LEVER Choke 40 3 740 GASKET Filter Nut I 9 3 751 VAL VE Choke 41 3 740 FILTER Fuel Inlet I 10 3 820 SCREW Choke Valve 4 2 3 740 SPRING Fuel Inlet 11 3 755 I CONNECTOR Vac Break Link 43 3 822 SCREW Slow Idle 12 3 755 LINIK Vac Break 44 3 858 PUMP Carb Fuel 13 3 755 DIAPHRAGM Vac Break 45 3 842 LEVER Pump Actuating 14 3 755 COVER Vac Break 46 3 841 SPRING Pump Return 15 3 820 SCREW Cover 3 440 I SOLENOID C E C l I 16 3 752 ROI Choke 3 444 BRACKET Solenoid 17 3 752 LEVER Choke 3 440 NUT Solenoid Ret 18 3 752 SCFI EW Choke Lever 3 444 WASHER Ret Nut 19 3 766 CAM Fast Idle 4 075 SCREW Bracket Ret I 20 3 767 SCFIEW Cam Atch 8 962 HOSE Solenoid Vac Bulk 21 3 734 FLOAT BOWL 47 3 729 TH ROTTLE BODY 1 22 3 818 TUBE Idle 48 N S S GASKET Throttle Body 23 3 792 JET Main Metering Std 49 3 822 NEEDLE Idle 23 3 792 JET Main Metering Alt 50 3 823 SPRING Idle Needle 24 3 825 BAl L Pump Discharge 3 822 CAP Idle Needle Limiter 25 3 825 SPRING Pump Discharge 51 3 741 SCREW Throttle Body 26 3 825 GUIDE Pump Discharge 52 3 842 LEVER Pump 81 Power Rods 27 3 814 NEIED LE SEAT 53 3 762 SCREW Lever Atch I 28 N S S GASKET Seat 54 3 858 LINK Piston Rod 29 3 820 COIMPENSATOR Idle 55 3 843 LINK Pump Lever 30 N S S GASKET Idle Comp 56 3 726 GASKET Flange 31 3 820 COVER Idle Comp 3 726 INSULATOR Flange Calf 1971 32 3 820 SCR EW Cover B3 172 GM PARTS DIVISION GENERAL MOTORS CORPORATION BUICK 4OA 3 69 3 000 GROUP