Help disconnect VRO

Nino

Recruit
Joined
May 11, 2003
Messages
5
I have a 93 Evinrude 90.I here horror stories about the VRO failing and have decided to disconnect it.I would like to know how to do this. Also I would like to know what the four wires going to the VRO do(black,tan,grey,purple).
 

fpctim

Petty Officer 3rd Class
Joined
Nov 2, 2002
Messages
97
Re: Help disconnect VRO

you can disconnect those wires and remove the oil injection line ,and premix your gas and oil
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Help disconnect VRO

Nino.... The following may interest you:<br /><br />(VRO Pump Conversion To Straight Fuel Pump)<br /><br />You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup by doing the following:<br /><br />1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. Trace the wires from the back of the VRO to its rubber plug (electrical plug) and disconnect it.<br /><br />2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.<br /><br />3 - Mix the 50/1 oil in the proper amount with whatever quanity fuel you have. Disconnect the fuel line at the engine. Pump the fuel primer bulb until fuel exits that hose with the tint of whatever oil you used. Reconnect the fuel hose.<br /><br />That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off.
 

Nino

Recruit
Joined
May 11, 2003
Messages
5
Re: Help disconnect VRO

Thanks fpctim and Joe.It sounds like something I can do myself.
 
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