What kind of gas and oil would you use for an 03 ktm 50 junior dirt bike?

For an 03 KTM 50 Junior dirt bike, you should use unleaded gasoline with an octane rating of 91 or higher. This bike requires a mixture of 32:1, which means 32 parts gas to 1 part oil. For the oil, you can use a synthetic oil specifically designed for 2-stroke engines. Look for an oil that is JASO FD certified or meets API TC specifications.