13713, 13713B. 13713 13713B Carburetor. Fit for Lincoln pipeline style welders, fits SA-200 and SA-250 (GAS) with F162 and F163 Continental engines with electric solenoid type idlers. Specification: Mounting Stud Spacing: 2-3/8″ (Center To Center); Throat Size: 1″; Air Inlet ID: 1-3/8″; Air Inlet OD: 1-5/8″.