1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 87Get this manual
Connector Housing If O-ring in fuel connector becomes damaged, air may enter the fuel line, resulting in motor surging andor stalling 1101
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-ring Both instruments are illustrated and can be made easily of 16 gauge 116 in(1,59 mm) diameter steel wireA piece of discarded remote control wire may be used Form 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 blocks2Push the plunger down with the straight instrument3Insert the hooked instrument between the O-ring and its seat with the hook in flat or horizontal position