TM 5-4240-501-148PCARBURETIONOne Piece Flo-JetThe small one piece Flo-Jet carburetor is illustrated inFigs. 72 and 73 and was used on Model Series 60700,61700, 80700, 81700, 140700, 141700, 144700 and145700. These are float feed carburetors with highspeed and idle needle valve adjustments.Fig. 74 - Large One Piece Flo-Jet CarburetorFig. 75 - Large One Piece Flo-Jet CarburetorThe large one piece Flo-Jet carburetor is similar to thesmall one piece Flo-Jet. The main difference is that thehigh speed needle is below the float bowl. See Figs. 74and 75. Repair procedures for small and large Flo-Jetcarburetors are similar except for location of adjustingneedles.Disassemble Carburetor, Small One-Piece Flo-JetRemove idle and high speed adjusting needles. Removebowl nut and float bowl. Use screw driver to removenozzle. Remove float pin to remove float and floatneedle. Use a large wide screw driver to remove floatvalve seat.Disassemble Carburetor, Large One-Piece Flo-JetRemove idle mixture needle. Remove high speedneedle valve assembly from float bowl and remove floatbowl. Use a thick blade screw driver to remove nozzle,then remove jet from top of carburetor. Remove float pinto remove float and float needle.Disassemble Continued, Small and Large One-PieceFlo-JetIf necessary to remove choke shaft, venturi or throttleshaft, proceed in following sequence. Pry out welchplug. Remove choke valve. On carburetors with nylonchoke shafts, remove choke valve as shown in Fig. 78.Venturi can now be removed, Fig. 77. (Choke-A-Maticlarge carburetors have a plate stop pin which must bepressed out to remove venturi.) To check for throttleshaft wear, refer to Two Piece Flo-Jet for procedure forchecking.Fig. 76 - Repair Carburetor21
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