check over the 'ears' on the header pipe. they have been known to crack or break as the end of the header pipe is a stainless casting. If a repair is needed it can be welded.
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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