1965 Evinrude SportFour Heavy Duty 60 HP Outboards Service Repair Manual, P/N 4204, Page 30Get this manual

1965 Evinrude SportFour Heavy Duty 60 HP Outboards Service Repair Manual, P/N 4204, Page 30

Quality of the image is intentionally reduced!

spark plug is properly suited to the motor, trouble may arise which might be interpreted as carburetor difficultyVery low trolling speeds will tend to foul plugs due to the oil not burning from the co