HOT 97 deejay Star, who was suspended for mocking the death of singer Aaliyah and who claimed hip-hop is "a big Jew business," has been yanked off the air again - but this time the station isn't saying why.

"Star has been suspended and we don't know when he will return," co-host Keysha "Prozac Girl" Whitaker told listeners yesterday.

Rappers Cam'ron & the Diplomats are guest hosts during Star's suspension.

"We don't have a lot of rules about that morning show, but he broke a huge one," said Barry Mayo, senior VP and market manager for Hot 97 owner Emmis.

"It's serious - he's been suspended before," Mayo said.

Although Hot 97 (97.1 FM) isn't talking about why Star (real name; Troi Torain) was quietly taken off the air last Wednesday, a source at another station told The Post the DJ is believed to have been suspended for bad-mouthing a station advertiser on the air - a serious offense.

"The reason is not for general consumption - not even something the audience would understand," said Tracy Cloherty, Emmis's programming VP.

"The rule he broke was not supposed to be broken," Cloherty said.

Torain was suspended for two weeks in 2001 for playing sounds of a plane crash and a woman's screams while joking about Aaliyah's death in a small plane crash the day before.

On his first day back after suspension - the eve of 9/11 - Torain drew fire from the Anti-Defamation League for railing about supposed Jewish control of the music industry, Hollywood, telephone companies and his own radio station.