i use 927 mixing oil and i put 4 ounces to the gallon. : )
32:1
50:1
it depends really i have the same bike and i do 40:1 ratio that's 16oz to every 5gal of gas
50:1 ratio
50:1
20:1
The 250 uses straight gasoline.
32:1
40:1
recomand mix 1/30 denicol racing 2t oil
i mix mine 20 oz to five gallons i think that is a 32:1 ratio
they have oil injection. but if your are not using it, 40:1 is a good ratio.