I have a 1997 Johnson 15 hp motor, I have been using champion spark plug # QL82C in it. I was lookin at the parts manual at shop evinrude and it showed to us QL77JC4. Does anyone know the proper plug? Thanks
I have a 1996 johnson 15 hp that has a slow top speed and I can't figure it out I have cleaned the carb, changed plugs drained the carb but to no avail. Anybody have any ideas?
