Hi all. I was wondering if anyone had any info they could share with me about my motor. I have a 1960 40hp evinrude that runs great low end but when I advance the throttle to full power the motor only goes to about 1/8 of full speed. Both cylinders have spark, both have similar compression at 118 each. Carb has been gone through and cleaned as well as the part that I would assume is the fuel filter? Does this model of outboard need a specific type of tank or fuel line? Cant figure out the low top speed. Anything you can tell me will help. Thanks.
