1998 115 (E115SLECM) VRO leaking fuel

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c6mcfall

Petty Officer 2nd Class
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Jun 19, 2013
Messages
100
Boat has sat more than it's been used unfortunately. I see that you can get the OEM fuel side rebuild kits, any experience with these? I'd also thought about rebuilding and then just going to pre-mix. I'm more concerned that the oil portion is next to fail, so am I better off disabling the oil injection rebuild the fuel side and just pre-mix?
 
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racerone

Supreme Mariner
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Dec 28, 2013
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38,641
These VRO units are quite simple.---And there is not much that can go wrong with the oil side.-----Take it apart to see what is wrong.----Repair as needed.
 
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Chris1956

Supreme Mariner
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Mar 25, 2004
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28,188
I had the same issue. My '98 Johnny OMS pump was leaking raw fuel. Being that it was 27 years old, I replaced it.

Upon further review, the oring where the raw fuel line attaches was leaking.
 
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c6mcfall

Petty Officer 2nd Class
Joined
Jun 19, 2013
Messages
100
I'll pull it and order the OEM rebuild kit. I can't complain the thing is 27 years old, not many mechanical items these days last anywhere near that long. It will be a few weeks before I get to it, will report back with results.

Thanks for the input and help, great forum!
 
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c6mcfall

Petty Officer 2nd Class
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Jun 19, 2013
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100
Just stopped by the local shop I've used for years, they were a Johnson/Evinrude dealer for years now sell Yamaha.. Anyway, owner (mechanic) told me that maybe 50% of the time the VRO kit fixes the leak due to wearing on the housing, not that the parts are substandard. I have nothing to go on but what others are saying, anyone run into this before?
 
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Crosbyman

Vice Admiral
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Nov 5, 2006
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5,754
tdon'T assume anything check out the utubes and dig in... at worst you can pre-mix.
 
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Chris1956

Supreme Mariner
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Mar 25, 2004
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28,188
You can get a brand new OEM OMS pump for $500, or a rebuild kit for $200, which has a 50% chance of fixing your issue. You pays your $ and takes your chances.
 
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Harkonnen

Seaman
Joined
Mar 29, 2022
Messages
71
Mixing gas is a pain, but at least you won't get your engine fried if VRO freaks out. My philosophy is, run VRO while the motor is under warranty, then go pre-mix. There are reasonably priced kits for that.
 
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c6mcfall

Petty Officer 2nd Class
Joined
Jun 19, 2013
Messages
100
I went and ordered a conversion pump, it was $125 from the local shop I usually get my parts from. They used to be an OMC dealer, good folks, have tons of used parts, so I usually order from them even if I pay a little more. I'm going to pull the old pump, might rebuilt it.. will see. For now I'll go with the conversion, pre-mix and hopefully get to use the boat. Hopefully will have it in next weekend, not happening this weekend.. Fixing the AC on my son's truck, always something.
 
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