50:1
THE ONE IK HAVE RUNS AT A 32:1 fuel/oil mixture
3.2 ounces per gallon
50:1 as recommended by the manufacturer
50:1 2.6 ounces per gallon
Usually this is written on the fuel tank cap or on a sticker nearby. Go check on the unit.
Yes it is.
40:1
50 to 1. 1 gallon of gas to 2.6 oz of 2-cycle engine oil.
50:1 is pretty universal these days, if in doubt go 3 oz. oil to a gallon of fuel,
The air mixture screw does that.
i bought a weed eater used so i dont have the manual and the last owner told me that the trimmer doesnt need the mix of gas and oil i wanna know if that is right? thank you for the help...
If this is in fact an Echo SRM 210, then a manual is linked below.