32:1 is standard fuel mixture for 2 stroke engines, you can use different ratios but this is the reccomended ratio by the manufacturer.
12:1 - 16:1 for a break in mix (new piston/ piston rings) after break in it's recommended to use 20:1 of yamalube oil.
The gas tank on a 1999 Yamaha YZ 250 has a 3-gallon capacity. The YZ250 has a 244 cc liquid-cooled two-stroke reed-valved engine.
If not using oil injection, the 115 hp Yamaha outboard will require a 50:1 ratio.
20:1
32:1 gas to oil mixture
50:1 ratio
30 liters of gas to 1 liter of oil
50.1
It would be wise to.At 32:1 ratio
the safest mixture would be 32 to 1
1991 evinrude 9.9 engine, could you tell me the gas oil ratio please
50/1