1996 Johnson Evinrude "ED" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 507127, Page 91Get this manual

1996 Johnson Evinrude "ED" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 507127, Page 91

Recirculation System Servicing Important disfunctional recirculation system will cause one or more of the following operational
alcohol into the fitting with syringeIf valve allows flow only from the manifold mounting surface toward block fitting, valve
is OK If valve allows flow in the opposite direction, in both directions, or resists flow in both directions, replace valve427
17 Repeat his test for each cylinder4Check the two check valves for each cylinder by injecting isopropyl alcohol from the
rear of the intake manifold with syringeIf valve allows flow only from the block side of the manifold toward the carburetor
side of the manifold, valve is OK If valve allows flow in the opposite direction, in both directions, or resists flow in
both directions, replace valveRepeat his test for each check valve for each cylinder 5Be sure recirculation system passages
are clean before installing he intake manifold Test your workFuel leakage can contribute to fire or explosionE u Safety Related