Fig. 64 - Replacing Nylon Fuel Pipe

TM 5-4240-501-148P CARBURETION Vacu-Jet Fig. 64 - Replacing Nylon Fuel Pipe Fig. 65 - Removing Brass Fuel Pipe To install brass fuel pipes, remove the throttle, if necessary, and place the carburetor and pipe in a vise. Press the pipe into the carburetor until it projects 2-9/32" (57.9 mm) to 2-5/16" (58.7 mm) from carburetor gasket surface. Fig. 66. Fig. 66 - Replacing Brass Fuel Pipe Needle Valve and Seat Remove needle valve assembly to inspect. If carburetor is gummy or dirty, remove seat to allow better cleaning of metering holes. CAUTION: Do not change metering hole sizes. Fig. 67. Fig. 67 - Metering Holes Choke-A-Matic Linkage Disassemble To remove choke link, remove speed adjustment lever and stop switch insulator plate. Work link out through hole in choke slide. Fig. 68. Fig. 68 - Choke-A-Matic Linkage Repair Replace worn or damaged parts. To assemble carburetor using choke slide, Fig. 68, place choke return spring and three washers on choke link. Push choke link through hole in carburetor body, turning link to line up with hole in choke slide. Speed adjustment lever screw and stop switch insulator plate should be installed as one assembly after placing choke link through end of speed adjustment lever. Adjust Choke-A-Matic Linkage The following covers Choke-A-Matic parts installed on and as a part of the carburetor assembly. See Section 4 for Choke-A-Matic remote controls. To check operation of Choke-A-Matic linkage, move speed adjustment lever to CHOKE position. If choke slide does not FULLY close, bend choke link. Fig. 69. Speed adjustment lever must make good contact against stop switch. 19