This is Turtle.
it does something to the white part , I guess ceramic stuff and it will
not hold back the electricity and just not make it fire at the points.

Turtle is absolutely correct, as all pro mechanics know. If the condition is
endemic in any engine, the solution is to match the spark plug heat range to
the engine operating conditions. First option, try a hotter plug (use the
manufacturers charts). Next option, use better air filters. Cheap ones tend to
make engines run too rich and foul the plugs. HTH

Joe