Homelite sx-135 ut 20609 2-stroke is gas to oil ratio 50:1 or 40:1 or 32:1

50:1
consider using stihl 50:1 oil as it is made to run in any 2 stroke engine at any ratio that way you only need one fuel tank correctly mixed for all 2 stroke operations

You should mix 8 Oz. of two cycle oil to one gallon of gas. I put the oil in first and then the gas and it will be mixed and ready to go.

Generally small tool 2 stroke engines run on a ratio of 50:1
That's 100ml of oil in 5L of petrol

if you are using sthil oil the mix is 50:1

40:1 mixture for the fuel:oil ratio.16:1 will cause your saw to barely run(if at all) and if it does, will fog out every mosquito for 4 blocks. You can use any reputable 2-stroke oil, though stay away from outboard engine oil. Get the good stuff that says Stihl, or Husquavarnah, or something like that. Even the Homelite stuff is ok. The oil tank takes regular bar and chain oil.

40:1
1 gallon fuel to 3.2 ounces 2-stroke oil

16:1 ratio for most 2-stroke oil brands. A service manual recommends tro check the ratio marked on the bottle if using Homelite brand 2-stroke oil. For other oils, 16 parts of gas to 1 part of oil.

For 1 gal of fuel, that is 270cc of oil required to meet the 16:1 ratio.

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is it so important to have the right oil ratio i have used a good grade oil and used a 50:1 ratio on all my trimmer, plows & ect. and had no problems cuz too

35-1

starts no prob will not rev , just stalls when you try