50 to 1, using a quality full synthetic oil like Stihl Ultra. Don't skimp on oil. Use the best.
jonsered oil/gas mixture ratio is 50 to 1.
The 451 is a 25:1 mix or 5.12 oz of oil to a gal of gas.
what is the oil gas mixture for a ysr50
its 40:1. Check the specs for this saw at: http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/801048d6175e831988256b6b00189180?OpenDocument
Oil gas is a mixture, not a compound.
You need the mixture of gas and oil mixture for 2004 YZ 125 in the ratio 1:32.
50;1 = 2% mixture
32:1 gas to oil mixture
The gas oil mixture for that sled is 24:1 according to the tag on my 79 srx.
2%
If the sugar does not dissolve it the oil, then it is not
50:1 is the correct mixture.