GASOLINE FUEL SYSTEM
Fuel Fiiter
Inspect the filter bowl located under the fuel tank daily for traces of condensed water. Every 200 hours or monthly clean the filter. To do so, shut off the fuel valve, unscrew the jam nut and swing the bail up out of the way. Remove the glass bowl with a gentle downward pull. Clean out the sediment bowl and rinse it in clean fuel. To clean the brass screen carefully remove the cork· gasket and extract the screen from the filter body. If the cork gasket becomes damaged or broken, use a new gasket to prevent leakage of fuel.
SCREEN
GASKET~
~-s
-NUT-~
Figure 65
Carburetor The carburetor is simple toadjust. Whenproperlyadjusted, maximum power with minimum fuel consumption will be the result. The adjustments for idling speed and idling mixture can best be made together when the engine is running at the proper operating temperature.
ldllng Speed and ldllng Mixture AdJustment The idling SPEED adjustment, Figure 66, is simply a stop screw that determines how far carburetor throttle valve will close when the engine is idling. The idling speed adjustment should be set so the engine operates at a speed of approximately 750 RPM, as indicated on the Tachometer dial. This adjustment has been made as part of your pre-delivery check; however, after long service or a decided change in the quality of the fuel, it may be necessary to readjust the idling speed.
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