Hey everyone, I am going threw my buddys yz426 and am cleaning the carb and I noticed that there is this hole in the carb that im not to sure if it is a puncture hole or just made that way. Its a keihin fcr mx 39. When I pulled the bowl off and removed the float there was a hard red/brownish line of dried goop coming from the hole. Also I know im beating a dead horse but I need some advice as far as jetting this sucker. All the info I seem to find contradicts each other so im lost. Haha. I live in iowa. Elevation is 750-1000ft and we ride in 70-90F. Any input will be greeaaattlyyy appreciated. BRAP ON!!