Run engine to warm up the oil undo sump plug drain old oil. Replace with the correct oil and amount.
KTM recommends Motorex ATF Super (Dexron II Gear Oil).
50/1
250 cc
10w30 is what ktm recommend for a 2 stroke engine
Transmission oil Motorex, SAE 15W-50
gas oil ratio for 1994 ktm 50 junior
32 to 1 or 50 to 1
transmission fluid
KTM recommends .15L-.20 L of Motorex ATF Super.
KTM 50 tops out around 50-52 mph my 06 ktm 50 hits 55-60mph
You have a 1999 KTM 50 SXR.
50 to 1 or 2.6 ounces of oil to one gallon of gas