* Dollar falls vs yen after rally on Thursday
* U.S. jobs report eyed, bleak figures expected
* Focus on fate of U.S. rescue plans for financial system
By Charlotte Cooper
TOKYO, Feb 6 (Reuters) - The dollar fell against the yen on Friday, after surging higher the previous day, with the market cautious before key jobs data that was expected to paint another grim picture of the U.S. labour market.
The U.S. currency hit its highest in nearly a month against the yen on Thursday, on a rally in U.S. shares that thawed some investor aversion to risk.
But analysts warned the slight recovery in risk appetite may not be sustained as the health of the global economy remained severe, with forecasts for more than half a million U.S. jobs likely to have been lost in January.
"We're likely to be treading water in the major currencies ahead of the payrolls numbers," said David Mann, senior currency strategist at Standard Chartered in Hong Kong.
A Reuters poll shows the U.S. unemployment rate is likely to have climbed to 7.5 percent in January, compared with 7.2 percent a month earlier, with 525,000 jobs forecast to have been shed. [
]Analysts say the market has largely factored in the job losses, although a rise in the unemployment rate would continue to bode ill for the outlook for a recovery in consumption and the housing market.
"The dollar probably won't move sharply unless the jobs report shows a significant deterioration, as investors are bracing for details on the U.S. bank rescue plan next week," said Akira Takeuchi, treasury manager at Chuo Mitsui Trust and Banking.
The dollar slipped 0.4 percent to 90.84 yen <JPY=> from late U.S. trade on Thursday, when it climbed above 92 yen.
U.S. MEASURES IN FOCUS
The dollar rose on Thursday as U.S. shares climbed on hopes that Washington's rescue plan for banks might include suspension of a key fair value accounting rule blamed for billions of dollars in bank losses.
A source familiar with the government's thinking later said the Treasury department and the U.S. Securities and Exchange Commission were not discussing suspending the rule. [
]Traders said even if it were suspended, this would not solve all the problems in the financial system and risk aversion was likely to remain.
The Obama administration is expected to outline its bank rescue plan next week, while the Senate was due to resume its debate on Friday about a $900 billion economic stimulus package.
The euro weakened slightly against the dollar as Thursday's decision by the European Central Bank to keep interest rates unchanged continued to weigh. The euro fell 0.2 percent to $1.2765 <EUR=> and 0.6 percent to 115.90 yen <EURJPY=>.
"Worries about the effects from economies and currencies in eastern and central Europe will also continue to weigh on the euro," Takeuchi said.
Russia said on Thursday that it would increase its stakes in state banks in coming months [
]. On Wednesday, rating firm Fitch downgraded Russia's sovereign ratings, while Kazakhstan's central bank decided to devalue its currency.Kazakhstan's prime minister said on Friday the government would not allow any of its banks to default.
Sterling held steady at $1.4603 <GBP=D4> after rising on Thursday when the Bank of England cut interest rates. But it fell 0.5 percent against the yen to 132.63 yen <GBPJPY=R>.