thanks heaps guys for your replies. i have burnt it out whith a gas torch and the od squirt of degreaser to get the f1 11 efect :woohoo:  :woohoo:  I all so poked a length of mullti strand stainless steel wire in to it connected to a drill.  the wire when turned worked great i collected a margerine con tainer  of crud out of it.i welded up the two holes and   disconected the  hot water from the carbie then took her for a spin. it has made a huge differance . i am keen to cut and remove the guts out of it in the future. but i am going riding now :laugh:  thanks to all. first post and very impressed whith the replys cheers greg 
  