U.S. President Donald Trump's desire for a stronger yen against the dollar is almost certain to figure into trade negotiations with Japan underway in Washington, but analysts say any effort to shift the currencies is fraught with risks for both sides.

As Japan’s chief trade negotiator Ryosei Akazawa heads to the US to kick off trade talks, he faces the risk of being forced to discuss currencies more than he wants, a scenario that may add further volatility to the yen.

The yen didn't figure into Wednesday's negotiations, Akazawa said, but currency issues are more naturally a discussion for Finance Minister Katsunobu Kato, who will have his own r