The yen continued to tumble Tuesday as another Japanese government official suggested its strength was delaying an economic recovery. On the eve of a central bank meeting, Finance Minister Masajuro Shiokawa urged more liberal monetary policy to help kick start the country out of recession. The yen touched a low of 128.45 per dollar, its lowest level since October 1998, and was recently changing hands at 128, down from 127.54 Monday. Against the euro, it fell as low as 115.93 before strengthening to 115.50.