In a previous post, I was supplied with the info that an Evinrude 4 cyl, 1979, model 4932D, required Champion spark plug QL86C gapped at .030. Thank you Middleground. When I received the motor it had Champion QL77JC4 plugs in it,numbered 828M on the box. I am just working on it now, and wondering if this QL77JC may be part of the problem, or are they also ok for this motor? Thanks for any help supplied.
