1974 Johnson 40 HP Outboard Motors Service Repair manual P/N JM-7407, Page 22Get this manual

1974 Johnson 40 HP Outboard Motors Service Repair manual P/N JM-7407, Page 22

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bInspect the inlet needle valve for grooves, nicksor scratchesIf any are found, replace float valve assemblySee Figure 3-11 Gum or varnish 011 th needle valve must be removed with OMC Accessory Engine