Ive heard from a previous post that i should run spark plugs #QL82C and not the Champion plugs #QL77JC4 On my 1986 Johnson 110 HP . <br />Is their a reason for the updated plug # and what if any performance gains ?
Its listed an an optional plug.Only a run test will confirm how they will perform.I wouldn't expect any performance increases though.Some engines will idle a bit smoother with an optional plug.
I forget were but omc posted that QL82C should now be the principle plugs for my motor and not the QL77JC4, although it wont hurt the engine in any way.
