Exhaust Anyone out there try one of these?

Discussion in '2-Stroke Engines' started by OgrePyle, Aug 16, 2014.

  1. OgrePyle

    OgrePyle New Member

    Has anyone out there tried one of these?
    http://www.kingsmotorbikes.com/Motocross-Poo-Poo-Pipe-Muffler.html

    I am basically wondering if this pipe is worth buying for the setup I am working on. I've had issues with the stock exhaust not clearing the motor mount or pedals, and a second exhaust not really being what I thought it was, and therefor not fitting how I wanted it to(or at all). I tried to have my old man help me weld together hodgepode out of exhaust #2 and some 3/4" EMT, and either his welding skills aren't all that, or our equipment isn't quite right for the job, cuz we burned right through it several(every) times. There was also a failed experiment with some flex tube and getting a flange attached. It turns out I'm not very good at this **** (yet). :(:dunce::veryangry:
    I have a:
    http://www.amazon.com/Micargi-General-1-speed-Cruiser-Firmstrong/dp/B00I525T9M

    With a:
    https://www.bicyclemotorworks.com/store/products-page/performance-bike-engine-kit/#.U-_snVVdVuM
    https://www.bicyclemotorworks.com/store/products-page/racing-carburetor-cable-5-jets/#.U-_s11VdVuM

    mounted with a:
    http://www.mmbikeparts.com/ENGINE MOUNT.htm

    other parts so far:
    http://mmbikeparts.com/sprocket_adapter.htm w/ a 44th sprocket courtesy of bike berry
    http://www.pistonbikes.com/product-p/sbs26hd.htm
    http://www.bikeberry.com/greenline-heavy-duty-springer-fork.html (black)
    https://www.bicyclemotorworks.com/store/products-page/perform-throttle-assembly/#.U-_valVdVuM (freebie)

    There will be pictures once it's finally together and running. Thanks for any and all advice.


    P.S.
    This project has been EXHAUSTing...:jester:
     

  2. KCvale

    KCvale Motorized Bicycle Vendor

    Yep.

    [​IMG]

    [​IMG]

    It's a pretty useless expansion chamber, it may have added a 1/20th of a HP if any but the real problem is the header, it has a tiny hole that just doesn't let the thing the breath.
    We just cut the header off and made a new one that let it breath.

    They are dandy for routing exhaust to the back and making it quieter, just don't fall for the Expansion Chamber power increase hype.
     
  3. OgrePyle

    OgrePyle New Member

    What did you use to make the new header?
     
  4. KCvale

    KCvale Motorized Bicycle Vendor

    If memory serves we just drilled out the header on the pipe for better flow.
     
  5. OgrePyle

    OgrePyle New Member

    Excellent. After all the headaches so far, that sounds really simple. Thanks a ton.
     
  6. KCvale

    KCvale Motorized Bicycle Vendor

    Your welcome and if memory serves there is a mount plate on the fat part of the pipe and on both those builds I just used the tensioner bolt to secure the pipe.
     
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