What would cause the No.4 spark plug to carbon up on my 340?
All the other plugs have a nice tan colour.
Running Autolites 65. I might have a bad plug wire?? (Accell's)
Timing is right on.
Any ideas?
All the other plugs have a nice tan colour.
Running Autolites 65. I might have a bad plug wire?? (Accell's)
Timing is right on.
Any ideas?
