Accidentally forgot to mix oil

Discussion in '2-Stroke Engines' started by Roughrats, Sep 2, 2016.

  1. Roughrats

    Roughrats Guest


    So I forgot my sister was using my gas can for the lawn mower which has no oil mixture and I filled my bike today with it. About 7 miles in it started to lose speed and completely shut off. Is there a way to put oil in now and let it sit? I'm in a rather hilly city and could only push it half way home. Did I completely ruin my baby?!

    Any help would be amazing!

    Also it's a Puch Sport Maxi

  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    You probably siezed your piston in the bore due to no oil.
    Adding oil now will do nothing for any damage to the piston, rings and bore.
  3. skyash

    skyash Active Member

    Put oil in the spark plug hole and rock the bike back and fourth it might free up might
  4. crassius

    crassius Well-Known Member

    if it turns after putting some oil in cylinder, you should take off head and look inside

    if there is a bit of scuffing on cylinder wall with no deep drag marks, you should smear a lot of oil on walls and roll bike to work piston up & down for a while with head off, then check walls again

    if it still looks OK, then I'd try it with about one tank of 16:1 mix before going back to 32:1
    FurryOnTheInside and Steve Best like this.