Leaking leftover oil?

Discussion in 'Motorized Bicycle General Discussion' started by cartisdm, Oct 19, 2008.

  1. cartisdm

    cartisdm New Member

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    My brand new *first* build is going great. I took it for a nice long test run around the block a few times and it seems to run smoother and smoother the more I use it.

    I've noticed that right under the engine where the exhaust pipe bolts in there's black oil that seems to have leaked out. I wouldn't say it's a lot but its certainly noticeable on a shiny new engine. Is this normal?
     
  2. Finfan

    Finfan New Member

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    Unburnt oil gets exhausted through a small hole near the top of the muffler and will spray onto anything in its path. On my bike it usually drips off the back of the front fender. I also learned early on not to wear white shoes while riding. Anyway it is a normal thing with the 2-cycle bikes unless it is leaking directly from the engine. The exhaust issue is why I am switching to a long pipe!
     
  3. cartisdm

    cartisdm New Member

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    Well it's leaking out from where the exhaust mounts into the engine. Maybe my gaskets need replacing?
     
  4. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    I think you just answered your own question! :D
    I always put a little silicone gasket on the exaust gaskets to keep them from leaking...;)
     
  5. cartisdm

    cartisdm New Member

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    I was thinking about running to Home depot for some parts and figured I should get this leaking problem fixed while I'm there.

    1. Should I replace the gaskets or just add one?
    2. What would I be looking for in the store? I have an idea in my head of just a sheet of rubber or some sort where I can trace out a replica of the current gasket and cut it out.

    For the second part I know what I want but not what I'm looking for, what should I use? It obviously needs to stand up to the heat of the engine/exhaust pipe
     
  6. Venice Motor Bikes

    Venice Motor Bikes Custom Builder / Dealer/Los Angeles

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    The stuff you need to use ISN'T found at home depot... It's found at a auto parts store!!!
     
  7. cartisdm

    cartisdm New Member

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    In that case I'll be heading to auto zone tomorrow. What's it called?
     
  8. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    High temp gasket material.
     
  9. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Replace it, don't use two together.
     

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