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Upgrading and motor swapping???

Posted: Fri Aug 31, 2018 12:29 pm
by Retired OG
A friend of mine is thinking of upgrading his 60 HP bigfoot for a new 90 HP model....will HE be able to use his current wiring harness??? He also mentioned he'd be willing to sell me his for a song...I realize I'll probably need to replace my old harness because it's for a 1975 Evinrude 70hp....if I was looking for a used harness, what would work??? Do all Mercury harnesses use the same plug configuration????