Bought a used 2001 KX 250 and I'm in the process of taking it apart and performing needed maintenance. I took the pipe off, and noticed one of the pipe springs was missing. Upon closer inspection, the tab on the exhaust port that holds the spring was snapped off somehow :bang: . What is the cylinder made of? Can I have someone weld a "loop" onto the exhaust port where the old tab was? If so, can it be welded without taking the engine out of the frame?