Help with spark plugs for 72 Evinrude

[geofisherman]

I have a 1972 25hp Evinrude that uses a J4J size spark plug. Cna any one tell me where to find this size plug. Thanks

 

[william =robert1]

Re: Help with spark plugs for 72 Evinrude

Im not positive but I think champion 835 is the new number. Im not sure so mabye somebody else can help.

 

[Jack Shellac]

Re: Help with spark plugs for 72 Evinrude

The manual for this motor calls for a Champion J4J or an AC-M42K. With a cross reference chart in an auto store you should be able to get all the equivalents to these two. I like Champions myself and since they changed their numbering system it sometimes gets a little difficult to get the right one. Usually somewhere on the package they'll have the old number. Gap is .030, incidentally.

 

[Mufasa]

Re: Help with spark plugs for 72 Evinrude

J4C is the currant Champion plug and should be at any marina. It is a very common plug.