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Thread: Smoke from exhaust of newly bought YZF R15..

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    Default Smoke from exhaust of newly bought YZF R15..

    Its been 45 days i purchased a brand new r15..evrythng was fine since the day when i saw visible smoke out my exhaust..whts that?
    I am afraid that i really pushed my bike hard enough at its break-in period. Its running on 1100 km today.
    I am afraid if i ruined my engine,is my bike dead already? Will it be fine.

    I have the warranty of 6 months.
    I feel like i played wid the piston ring.

    They will repair it for free,but will it back to normal again?
    Is the piston ring only resposible for this problem?
    I can see black residue at the exhaust aswell.
    CTCT likes this.

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    Query approved.
    (Been There Done That) x 3.25

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    Help.. I just want to know your view upon my problem
    I am soo depressed for this.Indeed!

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    Quote Originally Posted by Marshall View Post
    Help.. I just want to know your view upon my problem
    I am soo depressed for this.Indeed!
    What r the speeds you had done during runin??? did u rip hardly??
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    Quote Originally Posted by Marshall View Post
    Its been 45 days i purchased a brand new r15..evrythng was fine since the day when i saw visible smoke out my exhaust..whts that?
    I am afraid that i really pushed my bike hard enough at its break-in period. Its running on 1100 km today.
    I am afraid if i ruined my engine,is my bike dead already? Will it be fine.

    I have the warranty of 6 months.
    I feel like i played wid the piston ring.

    They will repair it for free,but will it back to normal again?
    Is the piston ring only resposible for this problem?
    I can see black residue at the exhaust aswell.
    If it is blackish smoke you are running rich..check and clean the air filter..If it is bluish smoke then engine compression sealing is kaput..either rings, or the bore also worn, allowing engine oil into the chamber to be burnt.
    Any case get it done under warranty and also check for LOW LEVEL OF ENGINE OIL and TOP IT UP..otherwise SVC will say that you had ruined the engine by running the engine with low oil level...Even if the oil level is within the recommended levels take the bike immediately to your Yam service center for getting the problem fixed.
    When Was The Last Time,You Did Something For The First Time.

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    Rusted frankpilli's Avatar
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    Quote Originally Posted by Marshall View Post
    Help.. I just want to know your view upon my problem
    I am soo depressed for this.Indeed!
    Marshall, the bike may emit visible smoke (its not smoke actually) in cold climate. if the outside temp is lower than then exhaust temp, it can be visible but soon after the engine warms up, there shouldnt be any visible smoke. if you see smoke after warm-up, then its definitely some fault with the engine.
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    Quote Originally Posted by frankpilli View Post
    Marshall, the bike may emit visible smoke (its not smoke actually) in cold climate. if the outside temp is lower than then exhaust temp, it can be visible but soon after the engine warms up, there shouldnt be any visible smoke. if you see smoke after warm-up, then its definitely some fault with the engine.
    My new Hunk once emitted visible white smoke on a cold morning. I was frightened and stopped the engine immediately. Started again, same smoke. But is suddenly disappeared after a few second and rest all fine. So that must have been something like you said.
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    Quote Originally Posted by Marshall View Post
    Its been 45 days i purchased a brand new r15..evrythng was fine since the day when i saw visible smoke out my exhaust..whts that?
    I am afraid that i really pushed my bike hard enough at its break-in period. Its running on 1100 km today.
    I am afraid if i ruined my engine,is my bike dead already? Will it be fine.

    I have the warranty of 6 months.
    I feel like i played wid the piston ring.

    They will repair it for free,but will it back to normal again?
    Is the piston ring only resposible for this problem?
    I can see black residue at the exhaust aswell.
    I have seen white smoke being emmited from R15 during cold temperature. It's actually water vapour, a by product during combustion. Do you see this white smoke everytime? What's the avg temperature there?

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    Quote Originally Posted by Marshall View Post
    Its been 45 days i purchased a brand new r15..evrythng was fine since the day when i saw visible smoke out my exhaust..whts that?
    I am afraid that i really pushed my bike hard enough at its break-in period. Its running on 1100 km today.
    I am afraid if i ruined my engine,is my bike dead already? Will it be fine.

    I have the warranty of 6 months.
    I feel like i played wid the piston ring.

    They will repair it for free,but will it back to normal again?
    Is the piston ring only resposible for this problem?
    I can see black residue at the exhaust aswell.

    what was the ODO meter when you started seeing the smoke? The smoke is black, as you saw the black residue on your exhaust. Great
    So you pushed your steed hard in break-in period.. thats good. I think you wont have even read the manual isnt it bro?

    Well even if you did and the smoke has started coming out, the major problem can be your piston ring would be gone. Though did you get your bike checked at the service center? what did they had to say?

    Well I think you have given the first slap on the engine by not doing proper run-in and disrespecting such a refined engine. Well dont worry you havent permanently damaged the engine as thanks to Yamaha, these engines can handle abuse. But dont take it for granted anymore. IF the Piston Ring changes start proper run-in for next 1000kms i.e. not exceeding 5500rpm in first 500kms and in second 500kms dont go above 7000rpm. I think that should solve your problem. Also next time after buying any Motorcycle, kindly read the manual and stick to it, atleast for run-in, it would be beneficial

    Save the Earth - We are the one who are running out of time, as Earth will take it own time to heal but that time may not be enough for us.


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    Quote Originally Posted by truelypulsarian View Post
    What r the speeds you had done during runin??? did u rip hardly??
    I didnt pushed it so hard. If u are asking the average
    Its not more then 40. Sumtimes i went up to 60.

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