"For my 1978 Johnson 140hp. Wh
"For my 1978 Johnson 140hp. What type spark plug wire should I use?
I looked at the Sierra brand wires which were yellow in color, but heard they weren't copper core wires. Is it important that the wire be copper core wire for a 1978 motor?"
"For my 1978 Johnson 140hp. What type spark plug wire should I use?
I looked at the Sierra brand wires which were yellow in color, but heard they weren't copper core wires. Is it important that the wire be copper core wire for a 1978 motor?"