treforissa Posted May 31, 2016 Report Share Posted May 31, 2016 Hi, Could someone please help me with telling me the 2 stroke oil ratio on a 1969 Sach 125cc? Got to get it running!! Dave. Quote Link to comment Share on other sites More sharing options...
old trials fanatic Posted May 31, 2016 Report Share Posted May 31, 2016 We used 25 : 1 back in the day but with modern oils i would think 50:1 would be fine. Most of the 2 strokes of the day run on 50:1 with modern oils with no problems at all. Will have to be your decision though as i take no responsibility for your motor if you follow my suggestion. Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted May 31, 2016 Report Share Posted May 31, 2016 I agree with otf - the bikes I have which ran 25:1 or 32:1 back in the 70s/80s as your Sachs did are fine on 50:1 with modern two stroke oils. Quote Link to comment Share on other sites More sharing options...
ducman Posted June 14, 2016 Report Share Posted June 14, 2016 I have a few Sachs powerd bikes in my Garage.Use full synthetic oil with a 50:1 Ratio. 1 Quote Link to comment Share on other sites More sharing options...
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