66cc 2cycle motor problem

Discussion in 'Introduce Yourself' started by john, Dec 30, 2011.

  1. john

    john New Member

    my bike stopped running. i bought a new top end and upon install i discovered my piston skirt is hitting the flywheel on the downstroke-why

  2. Al.Fisherman

    Al.Fisherman Active Member

    Must or sent you parts that didn't match your engine. Look and measure old to new piston. The wrist pin holes must not be the same. Did you install a cylinder base gasket? Maybe adding another base gasket or two might solve the problem.
    Last edited: Dec 31, 2011