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Tenere Oil Splutters from exhaust / back fireing issue?
Hi there again guys, another newby question about the yamaha tenere 660, i noticed i get alot of oil splutters around the tail pipe of the exhaust, that i am cleaning off daily (see pic below) i am wandering if this is normal with the tenere or...?
http://img541.imageshack.us/img541/5255/p0106100947.jpg also i noticed i seems to back fire alot to when changing down gears / slowing down from speeds, is this sound normal? - Thanks in advance :) |
don't have a Z but from the picture, it all looks wrong.
You can expect some carbon deposit inside the pipe which you can just about see if you run your finger inside. I would 1st check to make sure you haven't overfilled the engine with oil. Next would be to check for oil leaks just in case it gets sprayed onto you exhaust Popping on over runs is normal & normally caused by the PAIR system. I assume you run the standard bike with no mods |
looks normal to me. All exhausts do this, it's just that you notice it on the tenere due to the recess around the pipe.
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Mine does exactly the same. I presume it's the same thing you get with cars when you start them up and get water plus soot sprayed out the end of the exhaust. My bike did it when it was in standard trim and is exactly the same with a DNA stage 1 and 2 and the "Kev" mod set full on.
Maybe we should both try wipping the deposits off once the engine is hot and see if any more arrives. That would confirm the cold start water spray theory. |
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yes, I'm sure. The exhaust fills with condensation when cold so that's why you always get water and clouds of steam until it warms up.
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Yup mine does it too, no problems from it in 14,000 miles.
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thanks for the reply guys, very helpful!
you have put me at ease knowing its the same with you guys, thanks so much :) |
If the black dots are from inside the engine, then I am afraid I have to disagree. It is not normal.
Maybe for the Z (which I don't have), it is normal but my previous & current bikes don't do it. My experience is that garages then to overfill with oil. On the other hand, condensation from the exhaust (cold start) is normal. I run my XTR oil level at 3/4 up the dip stick max level |
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And 3/4 is just fine. |
Its normal, hold a piece of white paper up to any exhaust and that is what you will see, it just shows up on the silver cover on the ten
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thanks again :) |
could it be the common tar speckles one that gets thrown up by the wheels deposited somewhere on the bike depending on its bodywork; which in the case of Z collects on the silencer?
CCA mentioned the CAT I presume he thought this would stop solid oil from getting through. question & possible answers: -if the black spots smear or easily be removed,then it most prob engine oil -if hard (with cold exhaust) then most probably road tar |
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Deposits look normal to me, mine and my friend's are the same. I did keep an eye on on the oil level when I first noticed it just in case. |
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Mine same - not worried.
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If it really bugs you then just spray the silver black, problem hidden
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mine does that still after 25k km.. I've never bothered to clean the plastic recesses :p
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Also, it's not actually the oil, it's due to the mixture of the engine, and I suspect is linked to the AIS. On a carb'd bike a heavy black soot would indicate a rich mixture, on the Ten with it's air injection I suspect that as the mixture ignites on a closed throttle (the popping and banging) you get the increase in soot production. As the Ten has the silver surrounds, it simply shows up more.
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To sum it up, "it'll be reet, get out n ride the ass of it instead of cleaning it" :pjrlaugh_61OD3G::pjrlaugh_61OD3G::pjrlaugh_61OD3G ::pjrlaugh_61OD3G::pjrlaugh_61OD3G::pjrlaugh_61OD3 G::pjrlaugh_61OD3G::pjrlaugh_61OD3G::pjrlaugh_61OD 3G: |
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agreed!! hehe! thanks again guys! |
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