Maurice Ferre, 46, Miami's Puerto Rican-born mayor, won a fifth term yesterday, defeating Manolo Reboso, who had urged voters to "vote Cuban" in an emotion-charged race.

With all precincts reporting, Ferre held a 55.9 percent to 44.1 percent lead, taking 31,285 votes to Reboso's 24,722. Election officials said about 53 percent of the city's 112,644 voters turned out.

In Albuquerque, N.M., former mayor Harry Kinney, 57, was elected mayor for a second, non-consecutive term today, defeating radio and television personality Gordon Sanders in a non-partisan runoff.

With all precincts reporting, Kinney had 40,871 votes, or 53.8 percent, to Sanders' 35,045, or 46.2 percent.

In Miami, Reboso had courted the 40,000 Hispanic voters, while Ferre counted on backing from the city's 33,000 black voters and a majority of the others. A heavy turnout of black voters--as much as 60 percent in some areas--gave Ferre his victory. Ferre won many black precincts by 5-to-1 margins. Reboso, a Bay of Pigs veteran, ran strongly among Latin voters. The Anglo vote went slightly for Reboso.

Ferre and Reboso spent more than $600,000 for a two-year, largely ceremonial job that pays only $6,000 a year.

Meanwhile, in Trenton, N.J., Republican Thomas H. Kean, grasping the slimmest margin of any candidate for governor in the state's history, claimed victory over Democratic Rep. James J. Florio.

"I am the winner," Kean told supporters while fighting back tears. "I am the governor of the state of New Jersey."

A full seven days after the polls closed, figures reported to the state from 20 of New Jersey's 21 counties gave Kean a 1,740-vote margin over Florio, a four-term congressman. The edge represented .07 percent of the more than 2.2 million votes cast.

Kean's lead was nibbled to 1,656 votes once uncertified results from Essex County were included.