I have an 01 rm 250 and having trouble with jetting it. I ride at a low elevation in southern maine. I have an fmf fatty to shorty pipe set up no motor mods and run 32:1 premix running 91 octane fuel. I was wondering if anyone had any ideas on what I should be running? As of right now bike runs good but when I check my plug its always seems a bit on the rich side.