Been chasing a 65-70hp motor while I'm away & unable to work on the boat. Found a great deal on a 650 Thunderbolt long shaft. What other years parts swap to this 1971 & can I convert it to a short shaft?
I don't have ser# in front of me, but it checks out correct 1971 650 Mercury, I've been trying to run down a manual too, but no luck there yet, except Seloc.
Anything I really need to march for w this 650? Weaknesses or problems?