pmccand Posted January 19 Report Share Posted January 19 I have a 2012 ST290. I looked in the service manual, and there is a reference for removing and re-packing the silencer packing fibers on the newer models However, on the 2012 model, I am not sure this can be done. It is of a different design than what is shown in the manual. On my bike, there IS a philips screw in the correct location that would indicate it is possible, but when I remove that screw, nothing comes apart. Does anyone know if the silencer tube can be removed for cleaning or repacking on the 2012 model? Quote Link to comment Share on other sites More sharing options...
sectionone Posted January 22 Report Share Posted January 22 On mine I cut a window, repacked and closed it back up with an aluminum sheet metal cover with a rubber gasket and rivets. 1 Quote Link to comment Share on other sites More sharing options...
pmccand Posted January 23 Author Report Share Posted January 23 On 1/21/2026 at 9:06 PM, sectionone said: On mine I cut a window, repacked and closed it back up with an aluminum sheet metal cover with a rubber gasket and rivets. Not exactly the solution I was hoping for. But yeah, I guess they are not too serviceable. Quote Link to comment Share on other sites More sharing options...
tony27 Posted January 26 Report Share Posted January 26 Pretty sure that after the first 2 year Bultaco models the muffler wasn't serviceable until after the rear tankers Quote Link to comment Share on other sites More sharing options...
faussy Posted Monday at 11:34 AM Report Share Posted Monday at 11:34 AM On 1/22/2026 at 3:06 AM, sectionone said: On mine I cut a window, repacked and closed it back up with an aluminum sheet metal cover with a rubber gasket and rivets. Did exactly the same on my mid 2000s shercos. I know guys who cut it completely in half down the seam, repacked it and then took it to a local engineering shop who welded it back together. Quote Link to comment Share on other sites More sharing options...
sectionone Posted 6 hours ago Report Share Posted 6 hours ago My method of a window on both sides is easy to repack again by removing the rivets but this guy details his welding method. Quote Link to comment Share on other sites More sharing options...
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