Re: mismatched motor
Sounds as though at some point someone swapped powerheads. Made a frankenmotor!
On the top of the powerhead there should be a small silver plug with numbers stamped into it. see if you can locate that plug and get the stamping numbers. The 60hp 2 cylinder was produced between 1980 thru 1985. The stamping for an Evinrude should begin with an E60---- and the Johnson will begin with a J60-----. The remaining numbers will determine the year.
The 60hp models used different part numbers for the upper and lower carbs also.
WOW this is strange~!
Posted the 1st response and got an error message, "Rules state must wait 15 seconds between posts" or sonething like that and then seen this response posted twice. Never seen this before!