I use 30-1 in mine.
The fuel mix for the mculloch 60012312 is 40:1.
40 parts gas to 1 part oil.
use newer synthetic oil. it covers a broad range of fuel/oil ratios with one mix. it will allow you to use one fuel mix for all your 2cycle equipment. not marine though.
Mix air,heat and fuel.
Start with 1and1/2 turns out on both high and low
Generally the ratio the oil is blended for. Most are 40:1 or 50:1. Most containers of oil are made to mix with a certain amount of gas.
The fuel mix is 24:1
35:1 is the fuel mix ratio
17 to one by weight air to fuel
I have 3 old skil gas chain saws. The decal for mixing ratio is 25 to 1 on the saws. this is for old style of gas. I now mix it 40 to 1. Not to much smoke. friskyjake
STOCK MOTOR CYCLE FUEL MIX IS 32:1 MOD MOTOR CYCLE FUEL MIX IS 40:1
Does not matter as it will mix with the fuel either way you do it.