Re: Spark plugs '93 70 horse
If you're sure you have a 93' model the proper Champion plug is QL77JC4/L77JC4.The first # with Q is a resistor plug and second is not. From 94'-98' model 70 hp Evinrudes call for QL78YC/L78YC. Always good to provide model number when looking for engine specific parts. Gap is .030"