mixture ?

[03z250r]

im in need of some info , im running an 85 lt250r motor and this will be the first smoker ive messed wit in a long time . i plan on running c-12 race fuel and im wanting to know would i mix it just like gas or wat. and wat would be a good mixture 32:1, 40:1 so on. i aslo would like to know some jetting info . im at 0 feet sea level, 80% humidity , so iwould like to know wat jets to get so i can get in the ball park of where ill need to be . this site has helped me a bunch already and everything is very informative ....... thanks for all the help

[2001_YZ250]

When i run race fuel in my YZ250, i usually mix it like normal but with a little more oil. With pump gas i go 40:1 and with the race fuel i go 32:1 or more. I have a Pro Circuit pipe and silencer and the 39mm Keihn carb. i use a 175 main with the needle on the second notch from the top.

[crazetoride]

theres no need to run race fuel, unless your compression requires it, if not its a waste of money and wont help performance matters much, pump 91 is fine as long as it suits your compression, what is your compression?
race fuel or not i think you should pick one mixture and stick with it anywheres from 32:1 - 40:1 IMO

[forumsearcher]

For jetting you can search on how to do a "plug chop" for fine tuning your jetting

[climb any hill]

And you can find the Plug Chop thread pinned in the Jetting Forum