Howdy! I ride a -99 Honda NX 650 Domintor which carriess the same engine as the XR 650 L. It is completely stock and in my opinion not very powerfull. I adjusted the valves the other day and as I had the seat off I ripped the snorkle off the top of the air box. After that it´s even weaker than before! What jets do I have to replace to make it run better and will this make any difference if I still don´t change the exhaust?