Hey Steve, The baffle is not removable. It may very well be baffle material. I do have a video of the exhaust outlet during initial start and the fireworks were quite impressive lol. The bike has been sitting for 10 years without the exhaust on so it is entirely possible that a critter got in there and made a home. I did get quite a bit of rust out when I shook it to get the rust out before installing. I did a cold start yesterday and it fired right up. I need to let it run for a bit tomorrow as it tends to stumble a bit on #4 and hopefully by letting it run, the carbs passages will get cleaned out a bit more and I can get it color tuned. Have a good one and thanks for your reply. Jon
