Delete 2-Stroke Oil System & Pre-mix?
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- Опубліковано 28 тра 2024
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I disconnected long ago and pre-mix, it only takes one of those pipes to pop off and it's time to re-mortgage the house.
Carbs
Easy way to calculate oil ratio in Liters/ml at 50:1....multiply the liters of fuel x 2 & add a zero...eg: 16l of petrol x 2 = 32, then add a zero = 320ml of 2 stroke oil.
14.5l petrol = 290ml two stroke oil.
Easy peasy!
One great aspect of intake manifold oil injection is the cylinder still receives lube independant of carburetor malfunction.
1979 Mercury 175 HP Black Max, only option I have is premix, her names 'Ol Stanky'.
We did all our MERCS many years ago. One less thing too go wrong/Break
I did this to my old Polaris PWC. Worked great
Good advice.
The bad rap came from first an second generation VRO's third gen and above were good, the OMS system is bullet proof, gear oil pumps are perfect on all other brands but the myths persists and users are in the dark.
I’ve had mine deleted on my 2004 90 Yamaha for years and it’s been doing great. I never worry when I’m on the water. Plus I can take the cowling fill cap off and have an instant cold air intake HA!
Carb models typically run off a pulse limiter directly from crank case pressure to the diaphragm oil pump which is fail proof if you conduct proper maintenance, and use OEM parts. That’s how any carb model that I’ve owned was designed. Simple and reliable.
I'm fine keeping the precision blend system running on my Yamaha V4 130, it hasn't caused me any trouble so far.
I had mine changed to premix after a nightmare out on the water. There was no indication that the engine was being starved of oil until the horrible screech of the engine seizing 2 miles out from the shore. We managed to wave down a passing boat and get towed back to the boat ramp..Engine needed another block and a couple of pistons, parts and labour cost me an arm and a leg. It transpired that the the oil feed pipe had somehow developed a 90degree kink and had starved the cards of oil..The mechanic asked me if I'd rather mix it myself and we did away with it..I ran it for years after without a hitch..
1993 Johnson ocean runner 200hp. Previous owner deleted the oil system. I have a mixing bottle that gives me a 10/1 ratio of gas to oil. Just add 1 one of those every 10 gals and some fuel stabilizer and I’m good to go. Takes a bit more time at the pump, but I’m relieved knowing that the mix will always be right.
So you are running 50:1 ratio, right.
My old seagull engine was a 10 to 1 always fouling the plug and leaving an oil slick hope yours wasn't this ratio doesn't sound right.
Merci beaucoup ❤❤❤❤❤❤❤❤
The auto mixing is soooo nice while it works.. soooo not nice when it quits.
I do it asap. Spend more on oil but to me thats worth it. 97 pro v 200
I bought a 1989 Charger with a 1989 Mercury 150 Black Max XR4 that had the oil system deleted. I have no idea as to why the system was deleted but I just mix a couple of 5 gallon cans of 50:1 premix with ethanol free fuel. So far, no problems.
Yamaha oiling system is 2nd to none. The engineers have already figured this out for you.
Somehow rain water got into my oil tank and seized my middle crank bearing.
Had a fresh rebuild merc pop on me. I remove mine on all now
Have you done a lot of work on Johnson 48 spl? Just picked on up
I would never disable and premix my ox66 oil system. My old 'Rude was another matter.
yup! 20 plus years and not a hiccup.
Old carbed rudes were made to be ran premixed, they added oil injection for lazy people lol
I think you should always repair or replace oil injection as OEM. NOBODY GETS THE MIX RIGHT EVERY TIME.
That’s why you always go a bit rich🤷🏻♂️
@@chimu0 straight facts!
Nerds will break out the hygrometer and verify via specific gravity
I hae a 07 Yamaha 115 2 stroke i run my oil injection and i put some in my gas also my mechanic said it wouldn't hurt nothing i keep ring free in my gas and no my motor isnt full of carbon my cylinders are clean i just dont like the 200 to 1 when at idle the oil pump gives my motor so i add a little extra
Too many people with older 2 -stroke engines blame the Oil Injection system when an engine fails when the problem in many cases may have been dirty carbs. They fail to realize that when a 2-stroke engine is running lean it not only is starving for gas but since the oil is mixed with the gas when it starves for gas it also starves for lubrication. Paradoxically Oil many oil injection systems are designed to Over-Oil when they fail so blaming the pump is often misplaced blame.
I think this is true in many cases. I have seen people blame the OMC VRO for seizing a single cylinder in a v4, with the other 3 being perfectly fine. The VRO pump mixes the total fuel/oil mixture for the engine, not for each cylinder ( unlike my Yamaha oil injected 2 stroke). One thing I do think is a valid criticism of the VRO system is there must be some delay between the mixture ratio changing due to dynamic engine conditions, and that revised mixture ratio being ingested into the engine. Dunno how significant this is, but perhaps an issue going from idle to wide open lots.
I wanted to know, I have a 1996 Yamaha 150 TXRT and I was thinking about deleting the oil system. Is this a motor that is able to be deleted or not?
What if you do take the rid off the pump and when it goes to full oil find a way to make it go to least amout of oil find a way to keep it like that at all times no matter how the motor is running slow or fast keep it giving the least amout and just mix your gas on top of it so you can keep your oil injection hooked up and mix it with making it to Rich
Any Johnson/Evenrude VRO. Delete them every time and move on to premix.
why? They over oil when they fail.
I’m deleting mine in a few days it’s over oiling and I’m not paying $600 for a part.
I have the evinrude 150hp and it has the delete best choice ! Part is expensive
When the VRO fails it over oils, they are extremely reliable granted most them are well over 20years old now. The problem is when the VRO goes out an OEM pump runs 600$+ in part alone so most people opt to put a strait fuel pump and premix.
My 93 150 is premixed. I have enough issues dealing with fuel pumps and everything else. Been running great for the past few years. Time for an impeller and gear oil change though.
This is exactly what I'm considering for my Yamaha txr150...recently had my float go bad and it worries me every time. I grew up with my grandfather mixing his own fuel for his Johnson 225, so I dunno
You should get an alarm when the oiler is failing. The Yamaha oiling system is super reliable.
Hpdi optimax or ox66 you should not delete the oil injection but if your motor is carbureted is best to switch premix but most of the Japanese motors oil pumps are reliable but the small tiny filters get clogged and cause problems due to sitting maintenance counts most I’ve been working on outboard for over 15 years now
If it gives you problems. Delete it or wonder if she’s gonna detonate
I noticed that mercury sell an oil injection delete kit that has a block off plate which has a plastic rod that goes into the engine. I think the plastic rod is to make up for the volume of the oiler rod which gets removed. There’s no kit for the Yamahas unfortunately so do you think the increase in the crank case volume of cylinder 3 makes much difference?
Leave that Yammer Hammer alone! They have the best systems ever.
I wouldn't
I have a large two stroke that I have been pre-mixing for several years. I am upgrading to a (new to me) Suzuki 4 stroke. Is there a ratio of premixed oil that can be safely left in the tank by diluting with fresh gas or does all the oiled gas need to be removed with the install of the 4 stroke to keep from,harming the new engine?
Running premix in a 4 stroke will not hurt the engine, it will smoke a little until all the premix is replaced with regular fuel. The question is how much premix is in your tank and how much you run your boat. If under quarter tank I would fill up to dilute and run until it's smoke free. Fill up again and you're good to go.
Its not gonna hurt a thing, a lil extra oil during break in is negligible. I regularly take my old 32:1 premix and put it in my trucks tank, doesnt really even smoke unless im below a quarter tank but i can smell it. When i top off with fresh fuel i take it down the highway for an italian tune up and run a gear lower than normal to burn off any potential carbon from the premix in the engine and catalyst.
Worst case scenario run it and just keep it topped off as often as possible to dilute the premix faster, if you have other 2 stroke equipment you could transfer it to cans if you got em or maybe see if a local landscaping company may take it off your hands.
@@100GTAGUY aaw the drawback of putting oil premixed two cycle fuel in your pickup you run the risk of plugging up and ruining the catalytic converters. Just sayin.
Maybe a little at a time diluted out with straight gas would be ok
I guess you did say that
How can you test your oil system to make sure it’s working properly?
He made a video on that a few years ago.
Watch the oil consumption. We used to get at least a couple tanks or more of fuel to a fill of oil in the oil injection tank on our snowmachines.
Delete and premix then you know it’s getting the oil it needs to stay alive 👍
Never delete the oil system.
I pre-mix in my boat and is more easy and safe because the oil system can failure
What the heck is wrong with you peoples? Oil injection is the best thing to ever happen to a two cycle engine. Are those outboard systems really that bad? I'm shocked! I guess I've never owned an oil injected two cycle outboard. But i have owned many two cycle snowmobiles and bikes and never had a lick of trouble with oil injection systems on them. My Dad was a Yamaha Polaris snowmobile dealer for years and we had a little trouble with the very first Yamaha snowmobile oil injection systems, im talking like 1969! However Yamaha remedied that issue very quickly. After that they were bulletproof. He didn't pick up Polaris till quite a few years later but they were solid as well. We always had to laugh because Polaris recommended premixing some oil in the first few tanks of gas. The Yamahas we just filled the oil tank with yamalube, gased them up and Go, Hard! Heck we raced snowmobiles and pleasure road sleds hard for thousands of miles a year. We normally only ever blew up the modified race engines that many of them had the oil injection systems removed. But it was usually wrong jetting or a fuel system malfunction.
You should not
I tried the oil injection system once and it failed/clogged in one of the cylinders locking up the motor. I premix everything now
You didn’t do your proper maintenance, or you used aftermarket parts.