1988 johnson 140 VRO problems

[fish_blackbass]

Pulsing alarm every other second after 2 or 3 minutes of operation. I have read several other posts about the alarms to determine that the alarm indicates a VRO problem. I purchased an infrared thermometer to test temp of heads and found them to be inline with specs to make sure alarm wasn't for that. When alarm sounds, pumping the oil line primer bulb silences alarm for another couple of minutes before repeating. I've inspected the oil lines and can't find any holes/tears/problems with anything. My question is do I start replacing the line and primer bulb or simply disconnect and premix? Could it be a problems with the pump itself? Is the alarm sensor before the pump indicating that oil isn't making it to the pump or after the oil is added to the fuel indicating that the pump may be malfunctioning?

Any help/advise is appreciated.

[tashasdaddy]

being an 88 it has the VRO2 pump, i would disable, and premix.


VRO conversion w/ pump still working

if the fuel side on your Pump is still working it is very simple. unplug the 2 line harness going to the oil tank, unplug the 3 or 4 wire harness, going to the Vro pump. cut and cap the oil line going into the motor. add oil to fuel tank, mix well, then remove fuel line at top carb, catching gas in a container, pump the fuel line bulb until you get premixed gas to the carb. you can tell as it will change color. put line back on carb, and go boating.

[kenmyfam]

Agree with the premix. Could also change pump for a pre VRO premix pump if you so desire but it will be more costly.