I have an old 85hp Mercury Serial No# 3869411 and I need a wiring diagram if anyone has one in pdf form. I have lots of manuals, but not one that far back. Its the dist. type with the side mount harness connection. I don't have a side mount so I want to wire it up direct with the newer type.. WIRING DIAGRAMS ARE HERE FOR MANY MERCURY OUTBOARD MOTORS : Wondering "Where-'n-'Ell" to get great parts for your outboard? Right Here! A Fun Old Porcelain Sign and Ancient Tools. MERCURY WIRING DIAGRAMS. The linked images are printable but may print across more than 1 page (in order to be legible). Most models also have black-&-white-only
Re: 1975 Mercury 85hp Wiring Have done all the above to my 85 hp Mercury before getting rid of it because I had to have tilt and trim. Good motor, but ditto on the wiring. Check compression before spending lots of money, if ok proceed with wiring update. They run great and remember that's about an 78 hp motor by todays rating at the prop.. Read Or Download 85 Hp Mercury Outboard Wiring Diagram FREE Wiring Diagram at MYDIAGRAM.ONLINE