Have a 1997 Johnson 2 stoke on a 19.5 four wins. Motor will not go over 3000 rpm no matter what you do.
Have checked compression 100 psi on all cylinders, 4 new ign. coils. 4 new plugs, 4 new ign. wires, new power pack, new water pump just for maintenance. Have at local shop and he is not sure...