Expansion Chamber 48cc 2 stroke you guys opinion please!

Discussion in '2-Stroke Engines' started by Xandelee, Nov 27, 2009.

  1. Xandelee

    Xandelee New Member

    hello, its my first post, and i come to ask you guys opinion about a expansion chamber that im planning to put on my 48cc 2 stroke, its from a 49cc 2 stroke moped, i think i can place it on my bike. So i ask if it will work right on my motorized bicycle, and will give more boost on the engine?
    im planning to put like "underseat" exhaust like on high end motorcycles :eek:
    here is the picture of it:


    by Xandelee

  2. spad4me

    spad4me Member

    Try to make the finshed measurement from the exhaust flange to the beginnig of the fat part of the expansion chamber about 12 inches.
    YES it will work very well on your engine.
    You may need to adjust the jet on your engine after the installation of the tuned chamber.

    Shorter pipes result in a higher rpm that the pipe works.
    These engines usually like around 6000 rpm. only.
  3. Xandelee

    Xandelee New Member

    what is the engine jet? thanks
  4. aussie*pride*n*ride

    aussie*pride*n*ride New Member

    the engine jet is the jet inside your carby which provied the fuel to your engine what he means is you might need to get a biiger one or modify it