1994 Johnson/Evinrude "ER" 2 thru 8 outboards Service Manual, Page 69Get this manual
Connector Housing
If O-ring in fuel connector becomes damaged, air may enter the fuel line, resulting in motor surging andor stalling
1121 Installation of the O-ring in the fuel hose connector requires
the use of two instruments, one to hold the plunger down and one to remove the O-ringBoth instruments are illustrated and can be made easily of 16 gauge, 116 in(1,59 mm) diameter steel wire piece of discarded remote control wire may be usedForm small hook on the bottom end of the longer tool of about 116 in(1,59 mm) radiusAfter cutting the wires to length, be sure the ends are rounded off to prevent scratching or damaging the O-ring seat on the plungerTo remove the O-ring follows:
from the connector, proceed as
1Grip the connector gently in vise between two wooden blocks
[i] 2Push the plunger down with the straight instrument