* Nikkei loses 2 pct as techs and traders weigh
* Profit-taking emerging ahead of earnings season
* Earnings worry hits Kobe Steel, Kawasaki Kisen
By Elaine Lies
TOKYO, April 8 (Reuters) - Japan's Nikkei average lost 2 percent on Wednesday, with Kyocera Corp <6971.T> and other tech firms down after losses by their U.S. peers as worries about earnings prompted investors to take profits. Trading firms fell after oil prices slipped, while shares in companies with predictions of poor earnings lost ground as well. Carmakers started the day in negative territory as profit-taking kicked in after sharp rises, but Toyota Motor Corp <7203.T> and several others later edged up as short-covering emerged on a sense the sector is over the worst.
Market analysts said investors were moving to lock in profits after the benchmark Nikkei <
> rose roughly 25 percent from its March 10 bear market low by the close of trade on Tuesday."I think round one of the rally may be over. Though the longer-term trend for the market is still up we seem to have run out of fuel," said Katsuhiko Kodama, a senior strategist at Toyo Securities.
"We're also heading into the earnings season, and while it's been predicted to be bad and you can say things are factored in, it's different when you actually have those figures before your eyes."
Wall Street tumbled as the U.S. earnings season began, with Alcoa Inc <AA.N> reporting its second consecutive quarterly loss after the bell, igniting worries about another round of poor profits and whether the recent rally is sustainable. [
] [ ]Japan's earnings season begins in earnest on Thursday, when retailers including Seven & I Holdings <3382.T> will announce full-year results.
While many market players said the season could be rough, few felt the Nikkei was in for sharp falls.
"There's no sign here of investors dumping stocks -- overseas indicators are improving, as is the dollar's strength," said Hideyuki Ishiguro, a supervisor in the investment advisory department of Okasan Securities.
"Whereas in February and March I'd say that 10 percent of Japanese investors were optimistic and 90 percent were pessimistic, I think the proportions are now 30 to 70."
The Nikkei ended the morning down 174.22 points at 8,658.63 after earlier falling as low as 8,645.01, or more than 2 percent.
The broader Topix <
> lost 1.5 percent to 819.87.CARMAKERS CHANGE GEARS Carmakers, which had risen steadily for six straight trading days, were initially hit by profit-taking that analysts had said was overdue and dragged the broader market lower.
But several, including Toyota and Nissan Motor Co <7201.T>, later turned positive on what Okasan's Ishiguro said was bargain-hunting on a sense the sector was over the worst.
Honda Motor Co <7267.T> edged down 0.7 percent to 2,785 yen. But Toyota rose 1.6 percent to 3,800 yen and Nissan climbed 2.6 percent to 476 yen.
Tech shares remained weak, though, after U.S. powerhouses such as Apple <AAPL.O> lost ground.
Kyocera fell 4.1 percent to 6,490 yen and Canon Inc <7751.T> lost 4.5 percent to 2,960 yen. Sony Corp <6758.T> shed 3.3 percent to 2,340 yen
U.S. crude oil futures fell nearly $1 to nearly $48 a barrel on Wednesday, extending a 6.6 percent decline in the previous three days, after the American Petroleum Institute reported a big build in U.S. crude supplies. <CLc1>
The decline hit trading houses such as Mitsubishi Corp <8058.T>, which fell 1.5 percent to 1,451 yen, while fellow trader Mitsui & Co <8031.T> slipped 2.2 percent to 1,105 yen.
Oil and gas field developer Inpex <1605.T> shed 2.9 percent to 707,000 yen. In a sign that worry about earnings was hitting Japanese shares as well, Kobe Steel <5406.T> lost 3.5 percent to 138 yen after it downgraded its earnings estimate on Tuesday for the year ended on March 31 to a net loss, citing an appraisal loss on inventories as well as impairment charges on stockholdings and fixed assets. [
]Kawasaki Kisen Kaisha Ltd <9107.T> fell 3 percent to 353 yen after the Nikkei business daily said on Wednesday that Japan's third-largest shipping firm is expected to miss its forecast for the just-ended financial year.
Trade picked up slightly on the Tokyo exchange's first section, with 1.2 billion shares changing hands compared with last week's morning average of 1.1 billion.
Declining shares outpaced advancing ones by more than 3 to 1. (Editing by Michael Watson)