250cc per fork
what is the fuel and oil mixture for a kx 250, 2 stroke
Hard to say, need more information. 2 stroke or 4 stroke and if it is a 2 stroke premix or gear oil.
10w30 is what ktm recommend for a 2 stroke engine
60/40
40:1
If its a two stroke then it just needs some 2 cycle engine oil
No not on a 2 stroke 250SX, however the 4 stroke 250 SXF does.
If its a two stroke then it just needs some 2 cycle engine oil
Supreme (or the highest grade) gas and (automotive) synthetic 5w 30 oil if you can't get to a bike shop. It's best to use ktm oil though. And if you're referring to two stroke oil, you can use basically any two stroke oil concentrate but again is best to use ktm oil
0.75 litres
It depends on what year, model and is it a 2 or 4 stroke. See KTM tech bulletin for 06 models below.