Would like to find out what year my mercury 650 thunderbolt is so I can stop writing 197?. And get more accurate info when I need help from this forum.<br /><br />Serial # 4261730<br /><br />Thanks for any responses.
Thanks for the help. Next question were there any particular problems with this motor that I need to worry about. Starts on the first crank but I remember pop had a 75 Johnson 3 cyl. and the timing would constantly need to be adj. Since this is a 3cyl also will I have the same problem?
