1997 Johnson Evinrude "EU" Accessories Service Manual, P/N 507270, Page 74Get this manual
Connector Housing
If O-ring in fuel connector becomes damaged, air may enter the fuel line, resulting in motor surging andor stalling
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, 1 16 in(1,59 mm) diameter steel wireA piece of discarded remote control wire may be usedForm small hook on the bottom end of the longer tool of about 1 16 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 plungerDR2321
follows:
To remove the O-ring
from the connector, proceed as
Grip the connector gently in vise between two wooden blocks Push the plunger down with the straight instrument Insert the hooked instrument between the O-ring and its seat with the hook in flat or horizontal position Twist the hook around to grasp the O-ring, then pull outDiscard O-ring To install new O-ring in the connector, proceed as follows: Place drop or two of oil on the O-ring Place the O-ring on face of the connector Push the plunger down with the straight instrument Pinch the O-ring together and gently push into position with fingersWhen reassembling the fuel hose, check for cracks in the primer bulb or in the hoseThe primer bulb must be attached so that fuel flow is from the shorter to the longer hose lengthFuel flow through the primer bulb is indicated by an arrow