69cc engine revs high when clutch is disengaged

Discussion in 'General Questions' started by ronrh1, Apr 24, 2015.

  1. ronrh1

    ronrh1 New Member

    my engine races really high when i disengage my clutch

  2. crassius

    crassius Well-Known Member

    may be the idle screw is set too high (note that idle is slow when motor is cold but faster when hot)

    may also just be too lean in carb settings or an air leak at the intake