1. Use the full 4 digit year for everything you are asking your question about. Example: 1962, 1988, 2000, 2011
2. Include the correct name of your Whaler model. Example: Montauk 17, Montauk 170, Outrage 26, Outrage 260
3. Include the length when necessary. Example: 16, 17, 18, 20, 22
4. Do not post your email address anywhere on this site as it is already in your user profile.

Premix ?
Harvey Boysen	#1  Posted on 05/28/14 - 6:32 PM
Member Personal Page Posts: 103 Comments: 0 Joined: 11/03/08	I have a "new" 1995 Montauk 17 that I want to restore. It's not in bad shape but I want it like new. It has a 1995 90hp V4 Evinrude 60 in excellent condition I would like to convert from VRO to premix to gain more space in the center console. Any reason other than the inconvenience that I shouldn't do that??? Thanks Harvey
Joe Kriz	#2  Posted on 05/28/14 - 6:45 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	The only thing I can think of at this time is the motor will always run with too much oil except at the higher RPM's. This can foul plugs and blow extra smoke at times out the exhaust. VRO cuts down on the use of oil at slower speeds. Less then the 50:1 Thus Variable Ratio Oil-Injection (VRO)
wannabe	#3  Posted on 05/29/14 - 3:50 AM
Member Posts: 287 Comments: 1 Joined: 06/03/09	There have been many reasons stated in the past for getting rid of VRO, but making more room in the console is a new one to me. Not a lot of room under there. Drew 1988 Outrage 18 - 1988 Yamaha 130 hp
tedious	#4  Posted on 05/29/14 - 4:51 AM
Member Personal Page Posts: 1072 Comments: 2 Joined: 09/07/08	I just want to see the 60 horse V4! More seriously, if you're going to pre-mix, won't you have to carry a jug of oil which will take nearly as much space as the VRO tank? Also, when you remove the VRO, I think you'll have to disconnect some of the alarm circuits, won't you? Don't know if in so doing you be silencing other alarms (like overtemp) that you really do want to hear.
todd12	#5  Posted on 05/29/14 - 8:47 AM
Member Personal Page Posts: 220 Comments: 0 Joined: 07/27/06	I have done it for the same reason you are stating. I have a 1996 115 johnson ( old style block ) on my current montauk. I did not want the extra tank in the boat. I just carry one or two extra pint bottles of oil if needed. I believe there are two electrical connections to be undone ( If memory serves me correct there is one at the vro pump and one from the oil tank. then plug / cap the oil line. There are many you tube videos that show this also. Good luck Edited by todd12 on 05/29/14 - 8:53 AM Todd
edmaude	#6  Posted on 05/29/14 - 4:23 PM
Member Posts: 117 Comments: 0 Joined: 07/02/08	Harvey, You can also run the standard fuel pump that came on the SPL88 motors and remove the VRO system entirely. I did that on my old boat and it is easy. The downside it like Joe mentions extra smoke and potential plug fouling if you troll a lot. I happen to have one of these standard fuel pumps on hand now that I could sell for 20 bucks if you like. It if from the 1983 V4 motor that my outrage came with Ed 1983 Outrage 18 w/ 2014 Etec 150
Harvey Boysen	#7  Posted on 05/29/14 - 7:42 PM
Member Personal Page Posts: 103 Comments: 0 Joined: 11/03/08	Tedious-sorry I wasn't clear. It's a 90hp V4 60 degree. Great motor and light. Ed-are you certain it will work on my motor? New/used? How do I contact you or how can you contact me? I'm not sure what we can put in these posts. I'm happy to put my phone # or email address if it is allowed. Thanks Harvey
Joe Kriz	#8  Posted on 05/29/14 - 8:19 PM
Site Owner Personal Page Personal Album Photo Albums Project Albums Posts: 11447 Comments: 452 Joined: 03/18/05	Harvey, all you need to do is click on his name and that brings up his entire profile. All the Whalers he has listed, all the posts, his email address if he doesn't have it hidden, and many more things. Click on his name or anyone else's to find out more info about that member. Edited by Joe Kriz on 05/29/14 - 8:20 PM
rvschulz	#9  Posted on 05/30/14 - 1:49 PM
Member Personal Page Posts: 145 Comments: 0 Joined: 06/28/10	when I bought my boat the previous owner had done this. some think the VRO is unreliable. I don't have this problem anymore 1987 Montauk 17, 2013 Etec 115
Weatherly	#10  Posted on 05/31/14 - 6:39 AM
Member Posts: 752 Comments: 4 Joined: 12/31/06	In technical terms, your 1995 OMC 90 HP does not have the often maligned OMC VRO system. You have the Oil Management System (OMS), a successor to VRO and VRO2. The OMS pump which replaced the VRO2 in 1992, has a variable oil ratio, but it only changes from about 75:1 at idle to 50:1 at speed. The factory called it a 60:1 pump as that was the average. Simply put, if you convert to a fuel pump only premix (which is easily done on the 1995 motor) You lose the benefits of oil metering at different operating RPM's. I personally prefer to maintain the OMS system, if the motor is so equipped. I have both a 2003 J90 with OMS pump and an 1995 E90SPL 50:1 premix. An OMS pump can be easily rebuilt with new diaphrams at low cost by any competent DIY mechanic. If you convert to premix, consider using the XD50 synthetic blend oil. Edited by Weatherly on 05/31/14 - 7:46 AM
Harvey Boysen	#11  Posted on 06/02/14 - 6:55 PM
Member Personal Page Posts: 103 Comments: 0 Joined: 11/03/08	Weatherly Thank you. I'm not concerned about the reliability of the system. I really want the center console to be more useable. I've always used Quicksilver Premium in my Merc 90. I know they also make a synthetic but I didn't think it made a significant difference in smaller motor. Is it significantly better for a motor as small as a 90? Thanks Harvey
gchuba	#12  Posted on 06/02/14 - 7:36 PM
Member Posts: 1675 Comments: 0 Joined: 03/31/13	I had a 2 stroke and went with some high end oil mix that was a higher ratio than how the motor was "broken in" with (a chain saw, not an outboard). Cooked the motor. I would prefer fouled plugs than a motor replacement. Stick with the ratio's and mixes that were designated for the motor by the manufacturer. Garris