Re: 1988 150hp Johnson
If you use conventional lift pumps, you need two for your motor.
It costs nothing to convert the VRO/OMS pumps to premix pumps if the gasoline side of the pump is still functioning.
If the gasoline side of the pump is not working, you can rebuild it with two kits. The oil side cannot be rebuilt nor can the warning system.
The kits to rebuild the gasoline side are sold as a package here:
http://www.maxrules.com/fixomcvro.html
BTW, you can usually tell if the fuel pump is the problem because it does not discriminate; it treats all the cylinders the same. If the pulse limiter or membrane is bad the #6 cylinder will be mistreated.
