What is the fuel oil mixture for a modified 650sx?

For a modified Kawasaki 650SX, the typical fuel-oil mixture is around 32:1 or 40:1, depending on the specific modifications and the type of oil used. It's important to consult the modification guidelines or the recommendations from the engine's tuner for the best performance. Always use high-quality two-stroke oil to ensure optimal lubrication and engine longevity.