breaking in

  1. B

    New bike

    I just built a MTB from a Schwinn swindler and a California motorized bikes motor, the carb was bad and had to be replaced. It idles right but when I am riding at low speeds the engine is really rough until I get it up to speed. Is this normal ? Also my cylinder crank has a oil leak and the...
  2. justakid108

    Engine Trouble Won't turn over now!!!

    I just replaced my 50cc with an 80cc. Breaking it in, it was running fine. So much better than the 50cc. I was riding around the neighborhood, when I took a different turn than usual, only to find another enterance to my neighborhood. So I was turning around (I was on the main road, like, at...

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