Re: Has anyone successfully decommissioned the VRO and mixed the oil with the gas
My new project 1991 johnson has a VRO
Owner says the VRO may have been the problem with scoring the cylinder walls.
Looking to decommission the VRO
Very simple, regular topic of discussion on this board:
While you're still running the oil mixing pump, run premix gas to flush the raw gas out of carb bowls, fuel lines, filters, etc.
Cut oil line near the fuel pump, plug with a bolt and hose clamp. Make sure there's absolutely no air leaks. I personally recommend this rather than disconnecting the oil line and replacing with a rubber vacuum cap. I had a pump that was d/c'd that way and the rubber cap degenerated and leaked air.
Unplug the wire harness from the fuel pump (will have 3 or 4 pins, probably 4).
Remove tank and disconnect wires running from tank to engine.
Tape and/or secure the loose wires and plugs in engine compartment so there's no chance of shorting.
Here's some good info on the system:
http://continuouswave.com/whaler/reference/VRO.html. I personally prefer and trust the VRO/OMS system and it's 1,000X more convenient for me than premix (built in tanks), but ran a previous, similar engine w/ premix for many years on this boat too.