new fuel pump?

daveydoodle

Petty Officer 2nd Class
Joined
Jun 15, 2011
Messages
160
hello boaters, Have a 1997 evinrude 50hp, changing from the vro to manual oil mix. Do I need a different fuel pump? Is the pump 2 parts--pump plus the diaphragm? Thanks ,daveydoodle.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: new fuel pump?

(VRO Pump Conversion To Straight Fuel Pump)
(J. Reeves)

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 (and fuel restriction warning if so equipped) by doing the following:

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.

2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.

3 - Mix the 50/1 oil in the proper amount with whatever quantity 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.

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.
 

daveydoodle

Petty Officer 2nd Class
Joined
Jun 15, 2011
Messages
160
Re: new fuel pump?

Thanks Joe, so all the same fuel pump set up is good ?
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: new fuel pump?

Thanks Joe, so all the same fuel pump set up is good ?

As long as the converting is performed as stated and the fuel side of the VRO is good... something you'll discover one way or the other on the first run.
 
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