Johnson Evinrude Outboard Motors 1956-1970 1.5-40hp repair manual., Page 13Get this manual
LOADING not want to replace the filler pipe with metal one, then it is possible to connect the deck fitting to the tank with copper wireThe wire should be gauge or largerThe fuel line from the tank to the engine should provide continuous metal-to-metal contact for proper groundingIf any part of this line is plastic or other non-metallic material, then copper wire must be connected to bridge the non-metal materialThe power train provides ground through the engine and drive shaft, to the propeller in the waterFiberglass fuel tanks pose problems of their ownOne method of grounding is to run copper wire around the tank from the fill pipe to the fuel lineHowever, such wire does not ground the fuel in the tankManufacturers should imbed wire in the fiberglass and it should be connected to the intake and the outlet fittingsThis wire would avoid corrosion which could occur if wire passed through the fuelCAUTION: It is not advisable to use fiberglass fuel tank if grounding wire was not installedAnything you can feel as "shock" is enough to set off an explosionDid you know that under certain atmospheric conditions you can cause static explosion yourself, particularly if you are wearing synthetic clothingIt is almost certainty you could cause static spark if you are NOT wearing insulated rubber-soled shoesAs soon as the deck fitting is opened, fumes are released to the airTherefore, to be safe you should ground yourself before