The mixing oil was 20-1 in 1974 for Suzuki Rl-250 Trials. How should I mix the oil for the tank today?
Nowadays, the technicians recommend using 50-1 or 40-1 ratio. You can even use 32-1 but you shouldn't go lower than that. I suggest you contact the developers for further information. You can get in touch with them using the Contact Us page.