top speed problem

Discussion in 'General Questions' started by dylan, Aug 12, 2016.

  1. dylan

    dylan New Member

    when my 80cc 2 stroke engine hits full speed it starts to cut back and get a little bit slower what is causing this ?

  2. pghewins

    pghewins Member

    it has reached its maximum rpm for the set up you have and has likely started to go into 4 stroke it wont ever do 100 mph however much you spend on it just be happy enjoying your freedom without having to pedal
  3. dylan

    dylan New Member

    how do i make it stop doing that i want to go faster
  4. jaguar

    jaguar Well-Known Member

  5. Steve Best

    Steve Best Well-Known Member

    I also had this happen where it started detonating at top speed.
    Higher octane fuel and/or timing retard helped, but really the answer was a better timing curve.
    See Jag's CDI.