50:1
the fuel ratio for a 1977 Johnson 6hp is 50:1. The mix can be moved to 60:1 if you will be doing a lot of trolling.
50:1
The sticker on the side of my 6hp two stroke Suzuki OB reads 100 to 1. Unsure of the year.
50:1
The '88 6HP I have has had a 50:1 mix since it was new and still works fine. Just use a good quality oil.
You can get it here: http://www.selffixer.com/outboard.motors/mercury/1986plus.Mercury.6-8-9.9-15HP.2-Stroke.Service.Manual.htm
although the sticker on it says 100:1, mix a 50:1 ratio. In 1986 & 1987, for some reason Johnson went to a 100:1 recommendation. I actually like a 64:1 ratio in my pre mix 2 stroke outboards. That's 2oz of oil per gallon of gas.
You do not need a Skippers Ticket if the motor is UNDER 6hp. If it is 6hp, then you DO need a Skippers ticket. Our website has all the details about skippers tickets, plus there is a wikipedia page on it too.
if you look on the side of the engine cover it should say model number engine type and code...on a 6hp murray go kart with a Tec. 6hp it reads 196cc
140
50.6