I personally use 32:1 of amsoil and regular unleaded gas for my ktm 125 sx 2003.
50/1
40:1
40:1
50 to 1 or 2.6 ounces of oil to one gallon of gas
gas oil ratio for 1994 ktm 50 junior
There is no fuel/oil ratio, the 03 KTM 450 EXC is a four stroke. See link below.
32:1 is a great gas to oil ratio for any two stroke motocross bike. Also, a Ratio Rite is recommended for accuracy and simplicity.
32:1 ratio
the ratio is 50 to 1 50 parts gas to 1 part oil so 6 gallons of gas per 1 pint of oil
.7 L
the ratio is 50:1 on my ktm 125sx, for every gallon of gas you have, you need to use 2.56 oz of oil. i use Amsoil, its expensive, but its the best synthetic two stroke racing oil there is. the gas should be light pink if you mixed it correctly. hope this helps