Disconnecting the VRO

[jy118lfd]

Read the faq section good articles there. Then search vro on this site an sit back and read away. Lots and lots of articles on this subject

 

[Brass Monkeys]

Disconnecting the VRO

Can anyone tell me how to disconnect the VRO from a Evinrude 120. I would like to pre-mix my fuel instead of relying on the oil pump. It would appear that the pump has 3 wires and has VRO2 stamped on it. Also what is the best fuel/oil mix for this engine.

 

[OBJ]

Re: Disconnecting the VRO

Fairly easy to do Brass Monkeys....<br /><br />Pull the oil hose from the nipple on the lower engine pan and cover the nipple so it is air tight.....there is a cover for this you can get from the John/Rude dealer. Find the three wire amphenol connector from the pump and disconnect that and there is a two wire lead from the oil tank that needs disconnected also. This will be in the engine pan....looks like a lamp wire. These disconnections will deactivate the VRO alarms.<br /><br />The mix is 50:1....16oz oil for 6gal of gas.

 

[WillyBWright]

Re: Disconnecting the VRO

You really shouldn't just disconnect it. You need a different fuel pump. If you just disconnect it, THAT's when that pump can fail. My advice is to leave it alone. There are tens of millions still running just fine. It was the very first VRO model that was having some problems. All subsequent pumps have been extremely reliable. Don't cave-in to those stories about VRO failures being commonplace. That's all they are. Stories.

 

[jy118lfd]

Re: Disconnecting the VRO

Willy I agree I wish my 78 150 had vro. I could just gas and go, now I always have to mix, it can get messy

 

[Mark42]

Re: Disconnecting the VRO

The few people I know that have Jonhnson/Evinrudes all use the VRO system. None have ever experienced problems from it. Mine is working fine too.<br /><br />I like the featue that enriches the oil mix a bit when running hard. And compared to folks that pre-mix, my Evinrude hardly makes any smoke. Plus I can top off my gas tank any time without having to guestimate how much oil to add.<br /><br />Just my 2¢.

 

[Lowranger]

Re: Disconnecting the VRO

I have been swayed into believing that the automix is not to be trusted

The VRO "horror stories" are indeed frightening. I think that the remove/retain debate is the most explosive subject I've seen. BTW, been running an '89 VRO2 since new w/o a problem.

 

[Brass Monkeys]

Re: Disconnecting the VRO

Thank you all for the information.<br />To my knowlege the VRO is working fine but I must admit that I have been swayed into believing that the automix is not to be trusted. I would prefer to use the VRO sytem so i will look at the FAQ's .<br /><br />Many Thanks

 

[marinemech1]

Re: Disconnecting the VRO

the system works great....but with all things mechanical it requires periodic service.<br />there is an oil filter in the tank should be inspected/replaced on a regular bases say 100 hours/once a season.<br />hoses and clamps also need inspection.<br />the oil filter gets plugged up particuarly when using CRAP oil or mixing different brands of oil.<br />if boat sits for extended periods (winter storage) run a tank of 50:1 through motor to insure system works<br />also check warning features on a regular bases