To Install Fuel Pump

TM 5-4240-501-14&P Fig. 122 - Fuel Pump To Install Fuel Pump Place a liberal supply of grease or gear lubricant on the portion of fuel pump lever that contacts the crankshaft. Fig. 123. Assemble fuel pump to cylinder using new gasket. Keep mounting face of fuel pump parallel to mounting face of cylinder while inserting lever of fuel pump. The lever must ride in the narrow groove which is located on the crankshaft between the gear and the counter- weight. Revolve crankshaft to be sure that fuel pump is correctly installed. Assemble fuel pipe from outlet of carburetor. Fuel supply pipe should be connected to the inlet of the fuel pump. Fig. 123 -- Installing Fuel Pump CARBURETION Fuel Pumps, Automatic Chokes, Two Piece Flo-Jet AUTOMATIC CHOKE Automatic Choke Adjust Hold choke shaft so thermostat lever is free. At room temperature the screw in the thermostat collar should be in the center of the stops, if not, loosen stop screw and adjust. Loosen set screw on lever of thermostat assembly. Slide lever to right or left on shaft to insure free movement of choke link in any position. Rotate thermostat shaft clockwise until stop screw strikes tube. Fig. 124. Hold in position and set lever on the thermostat shaft so that choke valve will be held open about 1/8" from closed position. Then tighten set screw in lever. Rotate thermostat shaft counterclockwise until stop screw strikes the opposite side of tube. Fig. 124. Then open choke valve manually until it stops against the top of the choke link opening. The choke valve should now be open approximately 1/8" as before. Fig. 124 - Adjust Automatic Choke Check position of counterweight lever. With the choke valve in wide open position (horizontal) the counterweight lever should also be in a horizontal position with free end toward the right. Operate the choke manually to be sure that all parts are free to move without binding or rubbing in any position. 35