"My motor is a 1990, 200 HP “X
"My motor is a 1990, 200 HP “XP” Evinrude, Model No. E200STLESE, S/N G02519201, received new on 10/21/89. I want to test for a 7/16" spark for each cylinder with an adjustable spark tester. I plan to remove all spark plugs, install tester in plug wires -- one at a...