I have a 17.6 hp 1941 evinrude 4 cyl. It came without spark plugs. the plugs screw into the side of the the cylinder so they will need to be the right ones or the pistons will be damaged. i have looked that engine up and the chart said m5 spark plug but not the brand. I have looked at champion and no m5 plug.
Could someone help me out with this one?
Could someone help me out with this one?