time an adjustment is made to the float tab to alter the fuel level, the engine must be started and per-mitted to idle at least three minutes to stabilize the fuel level. Check the fuel level after each adjustment until the specified level is achieved.
6. Install the new air horn gasket and carburettor air horn assembly.
7. Check the idle fuel mixture and idle speed adjust-ments. Adjust the carburettor as required.
8. Install the air cleaner assembly.
Automatic choke-plate clearance, and fast idle cam linkage adjustment
1. Bend a 0.O36 in. wire gauge (tool) at 90 deg. angle, approximately 1/8 in. from its end (Fig. 10).
2. Remove the choke thermostatic spring housing if it has not been removed. Block the throttle about half-open so that the fast idle cam does not contact the fast Idle adjustment screw.
3. Insert the bent end of the gauge between the lower edge of the piston slot and the upper edge of the right-hand slot in the choke housing (Fig. 10), and pull the choke countershaft lever counterclockwise until the gauge is snug in the piston slot. Hold the wire gauge in place by exerting light pressure on the countershaft lever, and adjust the choke plate clevis (pull-down) adjusting nut to obtain the speci-
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fled clearance between the front of the choke plate and the air horn (Fig. 10).
4. Install the choke thermostatic spring housing and gasket. Install the housing retainer and the retaining screws.
5. Position the fast idle (r.p.m.) adjustment screw on the index mark of the fast idle cam (Fig. 11).
6. Turn the choke thermostatic-cover 900 rich (counter-clockwise) and check the clearance between the front of the choke plate and the air horn (Fig. 11). adjust the clearance to specification, if required. Turn the over-travel lever adjusting screw clockwise (inward) to increase the clearance and counterclockwise (outward) to decrease the clearance. Make certain the fast idle screw remains on the index mark (klckdown step) of the fast idle cam during the adjustment pro-cedure.
7. Set the choke thermostatic housing to the specified index mark. Tighten the housing clamp retaining screws. Adjust the engine idle speed and idle fuel mixture.
Automatic choke thermostatic spring housing adjustment
1. If the heater hose and mounting bracket and the carburettor air cleaner assembly have not been
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