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Motor Oil Spewing out of exhaust pipe getting everywhere
Posted: Thu Sep 20, 2012 10:45 pm
by Budinski
Hi people - I have a 2008 Stella 2 stroke and I was wondering if anyone knows what do when Motor Oil Spewing out of exhaust pipe getting everywhere?
At first I was told that it might be a bad hub seal and then I let it run in place and I noticed that oil was spattering out of the pipe.
Has anyone seen this and is a real bad thing?
Just to be clear it is not 2 stroke oil it is for sure 30 w motor oil...
Thanx so much yo!!!!

Posted: Fri Sep 21, 2012 11:24 pm
by jimmbomb
what color is this oil? can you post a picture of it? . how in the heck can tranny oil get to and in the pipe? wow
Posted: Sat Sep 22, 2012 12:12 am
by Lokky
Are you sure that it's coming from inside the header and not dripping down to it? I once overfilled my gear oil and the engine was pretty coated with it on the outside, dripping everywhere.
Posted: Sat Sep 22, 2012 6:20 am
by az_slynch
Lokky wrote:Are you sure that it's coming from inside the header and not dripping down to it? I once overfilled my gear oil and the engine was pretty coated with it on the outside, dripping everywhere.
If it is in fact gear oil, it could blow out the gearbox breather on the clutch cover if it gets too thinned out. I run Motul Transoil 10W30 in my P and fill it to the threads of the fill plug. It's fine, as long as I don't go over 1000 miles between changes. If I exceed that, the thinned oil will spit out the clutch cover breather.
Another possibility is a leaking O-ring on the clutch actuator shaft. It will spew on your back wheel if the O-ring fails. Easiest way to check is to look of a drop of oil on the bottom of the clutch arm.
It's physically impossible to get gear oil into your exhaust; the crankcase is separated completely from the gearbox by the case walls. Two stroke oil that makes it into the muffler does get all black and grimy. I see that if my exhaust stub has slipped a bit. Make sure that the pipe is slid all the way up the cylinder's exhaust stub and clamped tight.
Posted: Mon Sep 24, 2012 11:47 pm
by Budinski
Hi thanx for responses ... OK so I just bought the Stella and it is a 2008 with 250 miles on it. Do you think that there is any chance that what I thought was oil is just fluids settling in the pipe from no use for 4 + years - and when I rode the scoot it was just blowing out the liquid?
It seems to have slowed - I put 80+ miles on it and I think that it is slowing. Also the scoot is run just fine too.... Thanx
Posted: Mon Sep 24, 2012 11:56 pm
by Dooglas
Was the scooter intentionally stored for a period of time? I ask as one possible storage procedure is to put a tablespoon or two of motor oil in the cylinder to avoid corrosion during extended storage (and someone might have overdone that a bit). When the bike is first started that oil has to go somewhere

.
Posted: Tue Sep 25, 2012 12:01 am
by Budinski
I don't think that the guy did that - he just never rode it. I would have to say that he was not a tech oriented type of fellow. The scoot was not loved at all. I am now trying to make up for last time.
Posted: Tue Sep 25, 2012 12:58 am
by Robbie
I'm thinking the crankcase was just loaded with oil.....either from pre storage oiling or the oil tank check valve seeping over the last 4 years.
This has credibility because you indicate it is lessening as miles accrue.
Take a nice long cruise, 35 to 45 mph and it should dry /burn out of the exaust after an hour or so......the 2t's take a loooong time to get the exaust good and hot IMO.
Also, the previous owner may have filled the oil tank with a incorrect oil and those will smoke a bunch as well.
Regarding your tire post.......as stated, drip a bit of soapy water into the tire valve itself and see if it bubbles......if you're lucky, just a loose valve core.
If no leakage, get a new innertube......these are a piece of cake to replace.
Just remove the valve core so no air remains, unbolt the five rim bolts holding the two piece rim together and sererate everything.......do note the tire direction arrow for reassembly.
Run a towel inside the tire to be certain there is nothing in there that will puncture your new tube.......I suspect it'll be fine since you indicate the machine has virtually no miles......has the tire even been on the ground yet?
Reassemble with a bit of air in the new tube to hold it away from the rim halves on reassembly....bolt it together and fill the tube.......release the air three times and refill.....this relaxes the new tube in the tire.
Have fun....sounds like yiu found a nice project/driver.
Rob
Posted: Tue Sep 25, 2012 1:41 am
by BuddyRaton
Drain the gear oil and change it. Check the drained oil to see if it smells like gasoline.
It is very possible for fluids to transfer between the crank case and the tranny if the clutch side seal is blown.
Posted: Tue Sep 25, 2012 2:00 am
by az_slynch
BuddyRaton wrote:Drain the gear oil and change it. Check the drained oil to see if it smells like gasoline.
It is very possible for fluids to transfer between the crank case and the tranny if the clutch side seal is blown.
He's right, I forgot about that. Whenever I lose a clutch side seal, power goes kerput and I have trouble using 4th. Last failure took a bite the size of a pencil eraser out. Amazed it ran after losing that much seal.
Posted: Tue Sep 25, 2012 2:52 am
by Budinski
Thanx guys - Great information. I took it to Sportique our here and they though that it might be the clutch seal too. I changed the gear oil and it had a normal smell in my opinion. To me it seams like most of the oily substance is coming from the side where the muffler port is. It does seam to be getting better as I ride it. I would be more worried but it running great..