speedfight engine help 50cc upgrade to 100cc

Discussion in 'The Workshop' started by richard, May 10, 2014.

  1. richard

    richard New Member

    Messages:
    21
    hi i have a speedfight 50cc engine but i have the head and piston from a 100 could i put it on the 50 would it run with without blowing up thanks rich :D
     

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