I just rejetted my 09 crf230 with a 132 main jet, 45 pilot, and new needle. I took off the snorkle from the air box and have been told that I should remove the baffle from the exhaust too. What I'm wondering is: will removing the baffle have any negative effect on the valves? I've heard that removing the baffle can heat up the valves and cause damage. Is this true?
Also, will removing the baffle mean that the bike is no longer green sticker/ legal??
What are the pros and cons of removing the baffle?