Re: 1983 chrysler 85hp
I believe the correct mixture would be 50/1 with a GOOD quality marine two cycle oil. If this motor is new to you might I suggest that you check out the post on "Waking a Sleeping Motor" that has been marked at the top of the forum. Reading thru that post may save you some headaches in the longrun. I'd hate to see you get frustrated. Good luck...