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Touchy subject...oil injection..delete or keep
#12850247
08/02/18 02:36 AM
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Joined: Apr 2009
Posts: 224
LittleBoatBigFish
OP
Outdoorsman
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OP
Outdoorsman
Joined: Apr 2009
Posts: 224 |
4 cylinder, mercury 125, 2001 (single, gravity feed reservoir)
Love it when you do it, Do it like you love it
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12850309
08/02/18 03:02 AM
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Joined: Nov 2007
Posts: 5,525
ssmith
TFF Celebrity
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TFF Celebrity
Joined: Nov 2007
Posts: 5,525 |
on this type system delete an go on mixing oil
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Re: Touchy subject...oil injection..delete or keep
[Re: ssmith]
#12850752
08/02/18 04:02 PM
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Joined: Jun 2011
Posts: 2,235
Jimfishes
Extreme Angler
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Extreme Angler
Joined: Jun 2011
Posts: 2,235 |
How do you all feel about a 2013 Mercury 150 ProXS oil injection system? It's 5 years old and wondered if I should have it removed soon or wait a couple more years?
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12850775
08/02/18 04:26 PM
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Joined: Jan 2005
Posts: 17,042
Pat Goff
TFF Guru
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TFF Guru
Joined: Jan 2005
Posts: 17,042 |
DFI motor is not going to be happy with premix. I don't know anyone who's attempted, but I'm sure the opinions will follow quickly.
Pat Goff Seadrift TX
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Re: Touchy subject...oil injection..delete or keep
[Re: Jimfishes]
#12850782
08/02/18 04:31 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Can`t be done on direct injection outboards. Without major changes. That carburated 125 Merc has the weakest oil injection system. Seen too many get the pistons. Those clear oil lines breaking. Get rid of the oil injection and pre-mix.
Last edited by gary purdy; 08/02/18 04:32 PM.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12851516
08/03/18 01:26 AM
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Joined: Jun 2016
Posts: 131
BSHAW27
Outdoorsman
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Outdoorsman
Joined: Jun 2016
Posts: 131 |
Sorry for dumb question but are you saying it should be removed because of the age and that it will start failing? Just curious because I have a 2002 125hp 2 stroke mercury that I recently bought.
Fish Lavon, Lewisville, and Texoma 19' FishMaster CC with 125hp Merc Helix 9 SI GPS & Helix 7 Chirp GPS MK Ultrex with link
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12851608
08/03/18 02:26 AM
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Joined: Jun 2010
Posts: 1,060
krazy kris
Extreme Angler
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Extreme Angler
Joined: Jun 2010
Posts: 1,060 |
I've always bypassed the VRO pumps on all my 2 smokers. Yes they do have alarms but once the alarms go off if they go off there is always that possibility that it's too late. If you mix it and don't use a paper fuel filter and there is no problems.
Last edited by krazy kris; 08/03/18 02:27 AM.
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12851711
08/03/18 04:01 AM
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Joined: Jan 2005
Posts: 17,042
Pat Goff
TFF Guru
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TFF Guru
Joined: Jan 2005
Posts: 17,042 |
Ok, just so everyone is clear. Carb and EFI two stroke motors lose nothing by premixing. Go ahead and do it, it'll keep peace of mind.
On the DFI motors, optimax, HPDI, Evinrudes take a complete different approach to how they get the oil mixed in the crank case, and should not be bypassed.
Pat Goff Seadrift TX
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12852437
08/03/18 07:14 PM
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Joined: Jun 2016
Posts: 131
BSHAW27
Outdoorsman
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Outdoorsman
Joined: Jun 2016
Posts: 131 |
So I can premix in the gas tank and leave the oil in the outboard or do I have to disconnect something on the outboard if I premix in the gas tank? Any issue leaving premix in the tank over the winter. (Compared to leaving regular fuel)? Can I still put marine fuel additive in the gas tank if I premix?
Sorry for questions but trying to make sure I understand.
Fish Lavon, Lewisville, and Texoma 19' FishMaster CC with 125hp Merc Helix 9 SI GPS & Helix 7 Chirp GPS MK Ultrex with link
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12852965
08/04/18 02:13 AM
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Joined: Apr 2009
Posts: 224
LittleBoatBigFish
OP
Outdoorsman
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OP
Outdoorsman
Joined: Apr 2009
Posts: 224 |
I ordered the block off kit. Should be here wed or thur of next week. Hardest part looks like it gonna be removing the lower cowling cover... The boat has half a tank of fuel on the guage, I guess I'll be syphoning it out to measure gallons to premix accurately
Love it when you do it, Do it like you love it
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12853154
08/04/18 07:16 AM
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Joined: Apr 2015
Posts: 1,818
Curtbass
Extreme Angler
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Extreme Angler
Joined: Apr 2015
Posts: 1,818 |
Do the block off then, No need to go through emptying tank to measure gallons IF you know how many gallons it holds when full. Example:20 gallon tank, mix for 1/2 tank = 10 gallons. . Mix rich (add oil) for 12 gallons just to make sure. Better to mix slightly rich than too lean. Should be a plate on tank listing capacity OR google your boat specs , if it's an under seat hidden tank. OR once you find out how big tank is, add oil for full tank mix, THEN go top tank off. Pull line from motor & pump bulb into a gas can till you get premixed fuel to motor end. . Put line back on , pour fuel back into boat & go crank it up. Since you'll have a full tank, it's important to use that fuel before phase seperation 2-3 weeks sitting. PERFECT reason to tell wife that tank of fuel HAS to be USED in 2-3 weeks. Voila!!! Several trips quickly.. LOL.
ELITE POWER SYSTEMS/ Elite Fishing Products Lithium Battery & Charging Systems, Soft Plastics, Tackle,Tokyo Rigs Tight lines & stay safe out there.Gods blessings
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12853155
08/04/18 07:19 AM
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Joined: Apr 2015
Posts: 1,818
Curtbass
Extreme Angler
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Extreme Angler
Joined: Apr 2015
Posts: 1,818 |
ELITE POWER SYSTEMS/ Elite Fishing Products Lithium Battery & Charging Systems, Soft Plastics, Tackle,Tokyo Rigs Tight lines & stay safe out there.Gods blessings
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12853417
08/04/18 05:29 PM
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Joined: Apr 2009
Posts: 224
LittleBoatBigFish
OP
Outdoorsman
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OP
Outdoorsman
Joined: Apr 2009
Posts: 224 |
Got everything pulled off for oil injection. I took Curt's advice, looked up the fuel tank specs and added it a smidge rich. Removed fuel line from engine and pumped bulb till it changed colors then reconnected. The block off plate should come in the mail Wednesday.
Love it when you do it, Do it like you love it
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12853682
08/05/18 12:03 AM
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Joined: Jul 2005
Posts: 23,043
Hard Rain
TFF Guru
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TFF Guru
Joined: Jul 2005
Posts: 23,043 |
I guess I will play devils advocate here I have an older very well kept 1988 Skeeter SD80 with a Mariner 75hp and I have never unhooked the oil injection. I did have one oil leak about 10 years back and the mechanic replaced all oil lines and said I was lucky after doing a compression check. Granted I do not use this boat hard and it stays in the garage exept the half dozen or so times I can get away from work to fish. I dont plan to unhook it maybe someday I will wish I had but for now the old motor starts right off on the ramp and runs great as is. And yes I probably just major jinxed myself
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Re: Touchy subject...oil injection..delete or keep
[Re: LittleBoatBigFish]
#12853887
08/05/18 02:51 AM
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Joined: Aug 2016
Posts: 601
Tc24
Pro Angler
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Pro Angler
Joined: Aug 2016
Posts: 601 |
My 98 Pro Gator has a Johnson 50 with VRO oil injection which I've never had a problem with, but after reading this I can't help but wonder if I should delete it or not.....
Last edited by Tc24; 08/05/18 02:52 AM.
1998 Pro Gator 160V
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