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Post by Karl on Aug 9, 2008 22:19:40 GMT -5
How many of you have added an oz or 2 of oil to your fuel "just in case" your oil injector doesn't function?
This is a double-edged sword.
1) If the oil injector is non-functioning the engine will seize
2) Some reputable rebuild shops online state that adding oil to your fuel will lean out the mixture, causing your piston to run hotter and increase the chance of engine seizure.
So, what gives? I would think that taking a chance of adding oil to the fuel would be a better option.
What are your thoughts?
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Post by jayhawk on Aug 9, 2008 22:39:01 GMT -5
Why are you expecting your oil injector to be bad? I've only added oil to the gas when my scooter didn't auto-inject (a moped from the 60s that I bought in 1980). Other than than, I've always just put oil in the oil tank and never mesed with it. I've done this with an older vespa, an 85 honda aero (which I owned until 2004ish), and my current scooter.
Eric
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Post by Karl on Aug 9, 2008 22:49:43 GMT -5
Eric,
It's a brand new scooter and the dealer suggested adding the 2 oz of oil to the fuel for the first tankful. I'd always done that, too, because I'd read or was told that it helped with lubrication of the new engine parts. Have you not heard that before?
Karl
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Post by jayhawk on Aug 9, 2008 22:57:36 GMT -5
Nope, I've not heard that before, but I've tended to buy used scooters. My new scoot, a Lamretta Due50, is my first new scooter, and I've not added any oil directly to the gas....just used the oil tank.
Does your manual advise adding oil for the first tank? I can't imagine that your engine won't get the right amount of oil right off the bat with the injector unless the injector is bad...in which case you'll discover that the first time you don't add oil to the gas.
Personally, I'd ignore the dealer unless the manual says otherwise.
Eric
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Post by Karl on Aug 9, 2008 23:24:53 GMT -5
It doesn't happen with oil injectors very often but it does happen. I think that it may not even be an issue with the injector but a kinked line that would prevent oil flow.
So by premixing you catch the problem without 1) losing your engine, and 2) are able to fix the issue relatively easily by replacing the faulty injector or finding the kinked line. However, I think that a thorough PDI would reveal a kinked line if there was one.
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Post by 90GTVert on Aug 10, 2008 0:55:36 GMT -5
I've heard of adding oil in for the first tank for break-in purposes. It's the same as how people say to run a 30:1 ratio and not a 50:1 ratio when you break in 2 stroke without an oil injection system. The folks that argue against adding more oil also say the added lubrication doesn't allow the rings to wear and break-in like they should.
I don't like the injection system anyway. I'd prefer to premix and know what I've got in there.
2 stroke break-in is like break-in for any engine, everyone will never agree. I'd say 30:1 hard break-in ratio on mineral oil, then I move up to a synthetic and mix about 45:1.
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Post by Karl on Aug 10, 2008 11:19:48 GMT -5
Yeah, I'm with you, Brent. I like to premix, actually. It's not that big a deal, just takes 2 extra items....a measuring device and the oil.
I find that my premixed engines tend to start, idle and run more smoothly. My guess would be because the mix is more uniform in the fuel.
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Post by kaintuckdave on Aug 10, 2008 11:37:11 GMT -5
Well, when I bought my scoot I told my dealer that the one thing I was worried about was the oil injector failing and the motor seizing up. He said; "You have a two year parts AND LABOR warranty." So I'm not gonna worry about it till two springs from now.  |
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Post by 90GTVert on Aug 10, 2008 11:53:45 GMT -5
Another pro for premix... you get to remove the weight of the pump/cable/hose/resevior. Sure it's maybe 2 pounds with the resevior full of oil, but it's easier than putting that sandwich down. lol
You can also free up some space for other things by removing the oil resevior. I just stuck an LED light in there, but you could certainly find something more useful to put there. I've heard of others putting pre-mixed fuel in there as a backup so they don't have to mix at the pump for a longer trip.
Just so I'm not coming off 100% biased to injection... It was very nice not carrying around oil in case I needed to fill at the pump and then figuring out how much to put in. I just carry the quarts of oil and once they are opened they will seep. If I had good sense I'd buy container just for this purpose that would seal properly though.
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Post by kaintuckdave on Aug 10, 2008 13:43:59 GMT -5
Or put your oil container in a large freezer zip lock.  |
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Post by 90GTVert on Aug 10, 2008 13:54:24 GMT -5
My oil container is JUST too big for a 1 gallon bag, that was my first thought too. I don't have any bigger ones around. Somehow I never remember to look for larger bags in the store.
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Post by Karl on Aug 10, 2008 14:06:58 GMT -5
What I used to do is carry around 2 oz of oil in a small, heavy duty plastic container. Then when I was low on gas, put a gallon in and empty that container into it as well.
But you have to remember to fill that little container back up when you get home.
Brent, post some pics of Evil Black Scootie on here!
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Post by 90GTVert on Aug 10, 2008 14:19:15 GMT -5
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Post by Karl on Aug 10, 2008 16:30:48 GMT -5
Very nicely done, Brent!
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Post by 90GTVert on Aug 10, 2008 17:29:52 GMT -5
Thanks.
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