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Disabling outboard oil injection...on purpose

Posted on 3/10/14 at 3:17 pm
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
81952 posts
Posted on 3/10/14 at 3:17 pm
Just heard of this concept. How many of you have done this?
Posted by NYCAuburn
TD Platinum Membership/SECr Sheriff
Member since Feb 2011
57002 posts
Posted on 3/10/14 at 3:20 pm to
Did this on my jet skis back in the day. much safer to use premix. guessing the same with OB's
Posted by TexasTiger
Katy TX
Member since Sep 2003
5326 posts
Posted on 3/10/14 at 3:24 pm to
I heard of this when OB first started with the oil injection. There were a few models that didn't work as advertised and it spread like wildfire and everybody started to disable this feature and they went back to premix. But engine makers have figure it out and they are a lot more realiable.
Posted by dragboatscott
Member since Mar 2007
422 posts
Posted on 3/10/14 at 3:27 pm to
I do it to everyone of em I rebuild.
Posted by hogdaddy
Krotz Springs
Member since Feb 2010
5153 posts
Posted on 3/10/14 at 3:32 pm to
Mine works fine on a Suzuki 115, but my dad Disable his on Evinrude 85Hp that had the VRO pump.
Posted by sloopy
Member since Aug 2009
6885 posts
Posted on 3/10/14 at 5:30 pm to
Buddy did it on a 90 yammy, don't have to worry about it any more. Definitely the way to go.
Posted by lsucoonass26
Member since Sep 2009
47 posts
Posted on 3/10/14 at 6:00 pm to
I've heard that each cylinder is oil injected so if one quits getting fuel you have to rebuild if the modification is made. Not a mechanic but did hear something about this.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 3/11/14 at 8:51 am to
Had it done on my old 90 merc. I don't think I'd do it to a new one.
Posted by bayoudude
Member since Dec 2007
25000 posts
Posted on 3/11/14 at 9:06 am to
I have known a few people to do it. It isn't a big deal unless you have a large built in tank then it is a major pain in the arse to ensure proper mix. I had the oil injection on a 1994 225hp merc outboard go out and it is amazing how a 50 dollar part can cripple you.
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