This would depend on what type of oil you will be using for your premix. The oil base stock is either petroleum, semi-synthetic or synthetic oil and is mixed with gas at a ratio ranging from 16:1 (petroleum) to as high as 100:1 (synthetic). My 2 stroke I have is a 2001 Kawasaki KDX200 that I run Yamalube 2R at 36:1 with no problems. Although synthetics say you can mix them at 100:1 I would not, that seems way too lean to me.
No, you have to premix
Rent a Ktm Bike with endurobikes.co
40:1
50:1
40:1 is a good mixture.
Can't find anything online that far back, you will need to check with your local KTM shop.
32:1.
gas oil ratio for 1994 ktm 50 junior
yes there is the ktm ktm 85 ktm 110 ktm 125 ktm 150 ktm 250 ktm 500
40:1, I run Maxima 2-stroke oil and that works awesome
40:1 stock ratio to run richer if plug tends to foul 32:1
2009 KTM 250SX retail price $6598