Expansion Chamber for Happy Time Engine

Discussion in 'Performance Mods' started by atomicmiata, Oct 9, 2008.

  1. atomicmiata

    atomicmiata Member

    Start with this $50 pocketbike pipe:
    47cc Full Fairing Pocket Bike Performance Pipe
    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWNX:IT&item=7216253204
    I got mine from Myers Racing 1-800-797-5955

    The new included manifold fits perfect, no mods needed.
    Pipe will need 3 cuts, but no bending needed.
    I had a header pipe extension MIG welded on, and extended the stinger to the silencer.

    The pipe is nicely tucked way out of the way.

    Best of all the engine nows revs freely and can pull the mt. hills here with ease. Sounds good too!

    As you can see in the photos, it is held securely on with a spring and one bolt. A simple "U" bracket needs to be made but bolts to the stock kickstand hole and the other bolt thru the stock bracket on the pipe. Neat and cleanly done.
     

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  2. bluegoatwoods

    bluegoatwoods Well-Known Member

    It looks like it was made for that bike.

    Nice job!
     
  3. Ghost0

    Ghost0 Guest

    Same pipe me and Pablo use, works excellent.
     

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    Last edited by a moderator: Oct 10, 2008
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