Motorcycle Maintenance and Oil Information for 2001 KTM SX 125
If you are preparing to service the 2001 KTM SX 125, first identify the oil system described in the service manual. The catalog includes two-stroke lubrication products, but that listing does not determine the method of oil delivery or the requirements of a separate gearbox.
What kind of oil does a 2001 KTM SX 125 take?
For the oil application, the catalog offers DOMINATOR® Synthetic 2-Stroke Racing Oil, INTERCEPTOR® Synthetic 2-Stroke Oil as matching products. The record does not verify a viscosity, premix ratio, or oil-injection method; use model-specific service instructions for those details.

