CRF450 fuel?

[vAnS_77]

I'm new to the crf450 hybrid scene, I wondered what fuel is pref for a 12:5:1 comp in a motor that has ALOT of cash dropped into it?

[Groves187]

You dont need race gas untell 13:1, It probably wouldn't hurt to maybe do a 50/50 mix or somthin like that to be on the safe side. But you would get by with running 91.

[vAnS_77]

I bought this quad from East Coast ATV, it is an LSR 400ex frame. About 4 grand dumped into the engine from the last owner. Its really clean with PC on motor and chrome. I found it for 3500, then some other parts he sold me for around 600. I hope this thing is a monster.