Hello, I am new to the fourm and I just bought a 1975 Kawasaki F 11-B 250 2-stroke enduro. It only has 3k miles on it and runs great. I have a baffle at the end of the exhaust that is held in by 2 10mm bolts, and is easy to remove. Is it bad to run it without the end baffle? This bike is stock without an expansion chamber also.
~George
