Okay i have searched for this topic trust me and i only found ones that beat aroudn the bush i need a direct answer to this question before i spend money on reeds...i took out the reed block from my 125 and its pretty much stock and has carbon reeds but on two corners the reed is chipped a little bit...but not enough to cause a gap or anythingit still seals the hole in the block...do they need to be replaced? ps. my bike is bogging like crazy and dies out...also found a clogged pilot jet which could be it...but if anyone knows that even if the reed is chipped a little tiny bit does it cause problems, thanks guys