if you mean the steel brackets on your exhaust pipe, they can be welded back on neatly enough using a MIG welder, more control than using rods in my opinion, you can have the cases welded using a TIG welder BUT it has to be an AC/DC set as it needs AC current for alloy welding and the weld area has to be spotless. Another much cheaper option is chemical metal which can be sanded,drilled and tapped afterwards. good luck.
Ted
June 2011
if your talking about the two mounting points on the right hand crankcase(the bits with the holes in for the mounting bolts) you will need to find someone who has a tig welder to weld them back on if you have the broken parts if not you need to find a new crankcase half and swap them over but they are actually line bored and should really be replaced as a pair.
adam bike doctor(of milton keynes motorcycle centre)
June 2011
find your local metalworker and have it MIG welded up.
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