PARTS SHOWN ARE FOR IDENTIFICATION ONLY REFER TO PARTS LIST GROUP 3 725 FOR SPECIFIC PART NUMBER a Q I 2 H 12 I3 ld J A r G 5 S Y 4 Us N r 5 E it 9A V 1 A E so N 16 5 I R Q S e W 17 2 11 Q 7 I Ain none peers cuokz mars 45 W 2 l I J1 gms J t 6 50 22 7 J 0 Z 52 1 rg 44 51 uy 32 3 Q 42 A3 53 25 23 3 26 g G 41 9 Q 35 I I non eowi news r RT TYPICAL ROCHESTER CARBURETOR MODEL Mv MONo IET I 1973 74 APOLLO 250 ENGINE KEY GRoUP DESCRIPTION KEY GROUP DESCRIPTION 1 3 730 AIR HORN 32 3 858 ROD Power Piston I 2 3 730 SCREW Air Horn Long 33 3 792 JET Main Metering Std 3 3 730 SCREW Air Horn Short 33 3 792 JET Main Metering Alt I 4 3 730 BRACKET Air cIhr szoe 34 3 818 TUBE Idle g 5 3 403 SCREW Bracket Atch 35 3 820 SCREW Cover 6 N S S KIT Idle Vent Valve 36 3 820 COVER Idle Comp I 7 3 738 GASKET Air I Iorh 37 3 734 FLOAT BOWL 8 3 820 SCREW Choke Valve 38 3 820 c0MPENSATOR Idle 9 3 751 VALVE Choke 39 N S S SCREW Slow Idle 9A 3 755 LINK Vac Break 40 3 820 GASKET Idle Comp 10 3 752 ROD Choke 41 3 740 SPRING Fuel Filter 11 3 767 SCREW cern Atch 42 3 740 FILTER Fuel IhIe1 12 3 752 SHAFT LEVER Choke 43 3 740 GASKET Filter Nut 13 3 752 LEVER Choke 44 3 740 NUT Fuel Inlet Filter 14 3 752 ScREw Choke Lever 3 440 SOLENOID Ic E c I 15 3 730 ScREw Bracket 3 444 BRACKET Solenoid 16 3 755 CONTROL Vac Break 3 440 NUT Solenoid Ret 17 3 766 cAM Fast Idle 3 444 WASHER Rez Nut 18 3 747 V PIN Float Hinge 4 075 SCREW Bracket Ret 19 3 814 NEEDLE at SEAT 8 962 HOSE Solenoid veo Bulk 20 N S S GASKET Seat 3 440 SOLENOID Idle Stop 21 N S S VALVE Power 45 N S S GASKET Throttle Body 22 3 838 PUMP Carb Fuel 46 3 729 TI IRoTTLE BODY 23 3 841 SPRING Pump Return 47 3 843 LINK Pump Lever 24 3 825 GUIDE Pump Discharge 48 3 762 SCREW Lever Atch 25 3 825 SPRING Pump Discharge 3 822 CAP Idle Needle Limiter 26 3 825 BALL Pump Discharge 49 3 858 LINK Power Piston Rod 27 3 842 LEVER Pump Actuating 50 3 842 LEVER Pump Power Rods 28 3 745 FLOAT Carb Fuel 51 3 823 SPRING Idle Needle 29 3 858 PISTON Power 52 3 822 KIT Idle Needle 8I Limiter A 30 3 806 ROD SPRING Metering 53 3 741 SCREW Throttle Body 31 3 859 SPRING Power Piston 54 3 726 INSULATOR Flange B3 175 GM PARTS DIVISION GENERAL MOTORS CORPORATl0N BUICK 40A 3 000 GROUP 3 70