MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone.
You are invited to join our public Boat Repair Forum to seek assistance from other members.
You may also visit the Boat Motor Manuals section of our site to obtain a service manual.
It is a VRO------But post your model # as not all 90 HP motors are the same.
There is a spot on the intake manifold where you mount a simple pump.---Just in front of the starter motor.-------A pump like found on the 88 HP versions of your motor.-----The pump should have 2 nipples one for fuel in and one for fuel out.------The pump mounts directly over the PRESSURE port with 2 screws 10-24NC thread and a gasket.-----The plug has to be removed from the pressure port.------Plug the port where VRO got pressure.