hi again , anyone here had much too do with these machines ? and thanks for the tip on the tank , a bit of trying and found one that fits . put the carb back togehter with a bit of a clean , new rope and handle and it now runs . not well but it goes now ! seems the aluminium shroud over the engine under the coweling had melted the decomp' plastic fitting . is this a common problem ? it could be modified to clear better though but i'd rather not just yet . it hasnt melted the new one but it might happen again . a pic if needed as i dont think many have seen the part , i never seen one before either . thanks again