Boucher says it's time for Kyrgyzstan's leadership to move forward with reforms.
"I think that everyone agrees that Kyrgyzstan needs a new constitution. The old constitution had so many changes that all the power ended up concentrated with the president. So, you need to do this, you need to complete this process, to rebalance the powers of government and to ensure that each can operate independently but not independent of the others."
Today's talks come at a time when Bakiev faces criticism at home and abroad for not implementing promised constitutional reforms.
Boucher also met with representatives of Kyrgyzstan's nongovernmental organizations today. The U.S. diplomat has already visited Afghanistan, Pakistan, India, and Kazakhstan as part of a regional tour.
(with additional material from AP)