oil under the engine

Discussion in 'Motorized Bicycle General Discussion' started by jbabb, Sep 12, 2009.

  1. jbabb

    jbabb New Member

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    I am fairly new to the motored biking. I have two Chinese engines. One 80cc and one 49cc. I

    Both have black nasty oil dripping on the floor after I park them. It is coming from under the engine.Does anyone know If I can stop this or is it just Characteristic of these beasts?

    Thanks for the help.

    jbabb
    :-||
     
  2. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    It's probably coming from the exaust pipe... (it's normal)
     
  3. jbabb

    jbabb New Member

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    I forgot to mention that. I thought it was the exhaust as well. But it is actually running all over the back motor mounts of both engines. It is not a clean oil ( I use blue 2 cycle ) it is a wet Black gewy stuff.

    It wasn't the exhaust pipe like I thought, and both engines seem to have it in the same place.

    Is there some type of gasket in there?

    jbabb:-||
     
  4. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    The 2-stroke engines also "spit" some gas & oil back out of the carbs... (again, this is normal.)
     
  5. bairdco

    bairdco a guy who makes cool bikes

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    my grubee does that. i just think of it as an automatic chain oiler. it goes away after awhile. and it's harmless. except to your socks.
     
  6. city of angels

    city of angels New Member

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    what type of oil are u using (how much) my bike use to do that until i switch to amsoil oil right the only i get is the oil from the exaust that comes when i am running the bike
     
  7. BarelyAWake

    BarelyAWake New Member

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    Prolly not it - but I just spooked myself (not you guys spookytooth lol), I was doin' my usual "preflight" and I noticed the underside of MY motor was covered in "wet Black gewy stuff"

    Yeah, well... as it turns out I was just a bit too enthusiastic last time I oiled my chain heh
     
  8. Kevlarr

    Kevlarr New Member

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    I was getting that as well, was almost a tar that would run down the mag cover and was in the cooling fins. Snugged up the exhaust nuts and switched to Opti-2 and it went away.
     
  9. Revo

    Revo New Member

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    Mine did it too, try to screw the motor mount studs in all the way. Mine does'nt leak anymore.
     
  10. xlite

    xlite New Member

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    It's funny to see people use 16:1 mix which is about 3x what's needed then wonder why their bike leaves a black trail of oil behind. :)
     
  11. Mike Hunt

    Mike Hunt New Member

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    bike's just marking its territory.

    its probably the mix though, i used to have that problem too, until i started putting in less oil.
     
  12. xlite

    xlite New Member

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    LOL! I have a special strip of my driveway allocated for the "oil barons". Gotta be careful not to slip when walking up that area. :)
     
  13. chrisme

    chrisme New Member

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    When my carb was running rich it would spit black crap out of the exhaust. And since my exhaust gasket leaked it would come out there too.
    But after I fixed my carb and got it running right, the black greasy nastiness stopped.
     

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