Hi Steptoe, I did a little research and came up with this advice for 2 stroke mowers:
TipsRun your two stroke machines at full power; a lot of people make the mistake of not running the machine at full speed as they�re afraid of damaging the machine. Two stroke machines are designed to work hard and work best when they�re running a full power. Problems will be caused with unspent fuel and carbon build up when the machine is not run at full power.
Mix your 2 stroke fuel mix correctly - don't guess it! It will save you $$$ in the long run.
Give your 2 stroke fuel-can a bit of a shake before refilling your machine as sometimes the oil can settle/separate from the fuel.
Why two different mixes? Easy; it depends on the quality of the oil you use in the mix. If you�re using high quality oil, like
Shindaiwa or
Echo two stroke oil, it's recommended you run the mix at a 50:1 ratio. Some of the higher quality oils will also have built in fuel stabilizers and smoke reduction formulas etc. This will vary between suppliers. If you�re using another brand of oil or one of lesser quality it's recommended you run the mix at a 25:1 ratio.
The ratios:
50:1 = 100ml of two stroke oil to 5 litres of unleaded petrol
25:1 = 200ml of two stroke oil to 5 litres of unleaded petrol
I personally use BP 2 Stroke oil in my Victa Tilt-A-Cut, as it was the oil recommended by Victa for the Series 80 engines.
