slow speed

  1. S

    Super slow after new kit

    So long story short bike got stolen but I got my racing carb and 36 tooth sprocket back. My old bike was super fast about 40mph ran perfect. Got a new kit about 2 weeks ago and just seems super slow I had the stock carb on until float got stuck and I just threw on the racing carb (no difference...
  2. R

    Slow Speed 2-stroke 66CC

    This is making me scratch my head help :/ How much is the max speed for a 2-stroke 66CC engine because mine will go only 6-7(km/h) or 4.3mph. Should I use the warrenty and tell the seller to get a new one? thanks,