bike blue smoke

[stranger12]

Hi ,

hope you are all good.

Other day I noticed my bike had a bit of blue smoke for split of second when cranked on and then gone.

It happened after I rode the bike and parked it and then start again.


now today i noticed it has lost about 400ml of oil .

can i make an assumption that my oil rings are on their way out ?

my bike has only done 13k and it is 2005 r6.

last oil change was 2 month ago and I always put in castrol 10w-30 power 1 racing and change it every 8 month-12 month or 3k miles.

any advice ?



a
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SV650 Red
R6 Red

[FuzzyBallz]

Certainly does sound like it, generally blue smoke is from burning oil

[RhynoCZ]

Well, the rings are gone, I guess. Any bits of metal in the exhaust system and/or oil? I'm not sure about '05 R6, but some of those eat their cylinders. 400ml is a lot.

Now, are you sure you know how to measure the oil level? If you were burning oil that quickly, there would be more signs around. The plugs would be black and shiny, there would be more of the blue smoke etc.

I'd also try to run an 10w40, instead of that racing 10w30 nonsense.
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'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[stranger12]

well no issues for the past 4 month and the bike was parked up for almost a month .

then when used i checked the oil and it was correct then today after 2 weeks of riding it had lost 400ml ( i know 400 ml as that is how much i put in ).

it could be it had lost more prior to that and I have not noticed which is very unlikely as I normally check it on a level surface and pull the bike toward me then dip in the oil stick and check .
could be before i have leaned toward me too much hence got wrong reading

I guess I will keep an eye on it for few days and also the exhaust is after market and i think the engine is running rich i guess

when you change exhaust to a a sport can does that make the engine run lean or rich ?
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[Andy_Pagin]

I had a similar problem with a Series Landrover, turned out to be the valve stem oils seals, which are considerably cheaper to replace. Don't know if bike valve gear works in the same way, but worth looking into.
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[RhynoCZ]

[Nemo]

I was going to suggest valve stem seals also.

Have you noticed any difference in performance or noises that weren't there before?
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[Pol Anorl]

arent r6s known for eating the sleeves?
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[stranger12]

I don't think my r6 has an o2 sensor .

it is injection model so in essence does that mean more air will go in thus leaner engine?
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R6 Red

[RhynoCZ]

My knowledge of the fuel injection systems is very limited, but if there's no O2 sensor, then the unit can't know how much of air is going through the exhaust/engine = the unit still runs like there was the factory fitted exhaust and air filter = making the mixture lean.

I'm quite sure you can change the fuel map, might gonna need a new control unit, since I doubt the OEM unit from the factory will allow you to do stuff with it.
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[carlosvalderr...]

Not trying to confuse things too much, but I've found valve stem seals tend to show up as a flare of start up smoke from pooled oil in the ports and cylinders, then not much when running.

Rings/bores have shown up as smoky under higher loads from the massive blowby, and on overrunning from drawing oil mist through.

This is based on car experience rather than bike, but in this sense it shouldn't make much difference.

Might be worth a test by taking the filler plug out when idling. If you have a decent seal round the rings, it shouldn't matter. If the idle stumbles, then it's breathing through the cases as well as the intake.

[Acerman]

400ml in two weeks?? how many km are we talking about? Your talking about a stick for measure, on the XT system its same stick measure system. And sometimes the oil is not in the upper tank, be sure that the bike has been riding and oil is hot. Let bike idle for 3min and check oil level again, 13k cant be worn oilrings with normal maintence. And if you really lost 400ml it must be coming out some other way. To be sure i would drain the oil and check how much thats really on the bike. Buy a cheap compression test and check all cylinders.

[P.addy]

[blurredman]

At only 13k and an R1. It's safe to say it's been ragged when cold, and taken to the limit many times.
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[stranger12]

ok so I checked the oil and it now seems it is quite above max line so will need to drain it again .

I think as per one of the posters , the bike needs to be warm before you do an oil check. What do you mean by upper tank , isn't there one sump and the oil drains right back in after the engine is shutdown ?


If you don't drain the excess oil, can the pressure build up and blow the oil rings etc ? what can be the worst ?

I think i may not have lost anything and 400ml was wasted as I checked the deep stick on cold. as per above, I am not sure why the engine has to be warm as when you switch off all of the oil goes back to the sump.


now regarding the blue smoke I saw, it could be it was accidental as have never seen it again or maybe my valve seals are gone!
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R6 Red

[RhynoCZ]

[stranger12]

well the bike was stationary for 2 days and I even checked it 10 times before I put oil in .

So thing the idea of cold check is wrong .

I did again check it 5-6 times when filling the oil in and waiting few minutes for it to settle and at the time it was showing just below max now way above so I have done all i could to avoid mistakes
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[RhynoCZ]

[Polarbear]

As another point to Rhyno's - check your manual to see whether you should check the oil level with the bike on the wheels, the center stand or whatever. It's almost certainly on the wheels.

Wifies ER6 is quite a difference if you do it on the wheels or the paddock stand.
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[P.addy]

[stranger12]

ook!
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[carlosvalderr...]

If you've overfilled the oil, you've a greater chance of the oil breather venting too much oil mist into the airbox. This can then be drawn into the engine and burnt, giving the blue smoke.

If you have the time and inclination, lift the tank, split the airbox and have a look, it could be pretty greasy in there.

A momentary overfill shouldn't leave lasting damage, but any duration of burning oil can foul up your plugs and on a very modern bike, fug your cat and lambda sensor completely.

[stranger12]

I have read it can blow the engine due to excessive pressure in the crank .

I sort of knew this but did further reading to confirm.

So I am draining the oil
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