1974 Johnson 40 HP Outboard Motors Service manual, Page 27Get this manual
I Figure Fuel Tank Upper Housing
UPPER OUSING ND FUE NE SSEMBSCREEN
year, and at every tuneup or maj repairTo fa cilitate omplete draining of the tank, drain is provided in the fue tank upper housing See Figure Clean the tank by (Jushing with lea gasoline or solventSee Owner's Manual fo correct fu mixtureDESCRIPTION The fuel tank is of simple but rugged construc tionwith capacity of gallons of fuel mixtur eIt includes the bulb primer (for priming the fu el pump), fuel level gagefuel hose and onnectobracket arrangement to ho ld the fu lin when not In useand arrying grip The fue tank upper hous ing, which provides the connection to the fu hose, conta ins two release valves nd di sc va lve whic prevent any escape oJ gasoline or fumesminim izing the danger of explosion or fireP IN