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the type of oil to use is 2 stroke oil ( not ordinary engine oil as for cars )and the ratio is 40:1
the engine type is a homelite engine and the ratio can be 40:1 or 50: 1
I prefer to set the ratio as to the smoke produced so if 40:1 produces too much smoke at full rpms , drop it back to 50:1
The correct mix is when there is JUST visible smoke at rpms
definitely no e fuels.
Most gas weed eaters use 2-cycle engines. For the Homelite 2-cycle engine trimmers, use a 50:1 ratio of gasoline to the Homelite lubricant. (For 1 gallon of gas, add 2.6 oz of the oil.)
To the best of my recollection the 330 is an older model saw and should be running about a 16:1 ratio. 8oz. of oil to 1 gallon of fuel. Hope this helps.
Note: You're always better being a bit richer (lower ratio) than you are leaner (higher ratio).
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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