Soviets threaten to lolt;Russians want defector returnedBy WICK TEMPLE AF Sports Editor MONTREAL (AP) — TheSoviet Union threatened to puil out of the Olympics Friday night li a teen-age diver, an apparent defector to Canada, is not returned to them The Russians, through Vitaly Smirnov, vice president of the Soviet Olympic Committee, attempted to characterize as a kid-naping what Canada has portrayed as the request for refugee status by 17-year-oldSergei Nemtsanov We will not participate in the final phase of the Olympics, perhaps, if immediate measures are not taken,’’ Smirnov told a press conference. We reserve the right not to participate.Smirnov said the Russians also would reconsider participation in the World Cup Ice Hockey tournament in Canada later this year unless Canada gave satisfactory explanations concerning the young diver, who appeared in a Canadian immigration office Thursday and, according to an immigration official, applied for refugee status,Smirnov's statement came with just one full day of competition remaining in the Games that have been troubled by strikes, delays, political squabbles, cheating and rumors of cheating.Russia is due to host the next Olympics, in 1980 at Moscow.On the playing fields, American Bruce Jenner won the decathlon gold medal in a worldrecord performance and Finnish runger. Lasse Ytm joiped toe long-distance legend of his countryman, Paavo Nurmi, by becoming the first man to with the 5,000 and 10,000 meters in two consecutive Olympics.The two heroic performances matched Nadia Comaneci’s gym-‘ nastic feats and the swimming sweeps by the American men and the East German women as highlights of these Summer Games.Viren won the 5,006 meters Friday in 13 minutes, 24.76 seconds, showing a strong kick in the final 100 meters to beat Dick Quaz of New Zealand and bronze medalist Klaus Hipdenbrand of West Germany After the race, a number of athletes, some officials and even some physicians hinted that Viren was using the experimental practice known as blood doping.Jenner won the decathlon with a world record 8,618 points. The old record was 8,454 set by Nikolay Avilov of Russia in 1972. Avilov was third in these Games, Guido Kratschmer of West Germany taking second.The 26-year-old, 195-pound Jenner, from San Jose, Calif., finished ninth in the 1972 Games and has dedicated himself to winning this time. He feels that the decathlon champ should have the title of World's Greatest Athlete.*’Wife weepsWhen Jenner crossed the finish line second in the 1,500-meterJapan regained the womer Olympic volleyball title with a J victory over the Soviet Union. T.. Russians won the silver and Sou-Korea the bronze-Steroids usedrun—the last of the 10 events—his wife, Chrystie, was standing there in a yellow Tshirt lettered “Go, Jenner, Go' She was weeping with joy. Jenner put his arms around her and kissed her.The decathlon has a complicated scoring system in which athletes receive points in each of the 10 events. The total decides the winner.Not since the 1920s, when Nurmi, the Flying Finn,” won nine gold medals and three silvers in three Olympics, has one athlete dominated the lonely world of the long-distance runner the way Viren has.'The 27-year-old policeman took the lead in the closely bunched pack in the 5,000 with about seven laps to go. He lost it, then got it back with 2W laps to go.He -won the 10,000 meters Monday and said he already is planning for the 1984 Games in Moscow where he will try to sweep the Big Two for the third straight time.Viren said after Friday’s race that he would go for a triple by competing in Saturday’s marathon. He would be the first since Emil Zatopek ofCzechoslovakia to win all three events in one Olympics Zatopek did t in 1952.Viren had gone through a carefully planned training program in Colombia, Puerto Rico and Kenya at altitudes between 2,300 and 3,000 meters, building up his resistance.Hildenbrand, who got the bronze medal, fell across the finish line and lay on his face gasping for air. He barely edged Rod Dixon at New Zealand for third.1 cYanks. Cubans vieBy ED SCHUYLER JR.MONTREAL (AP) - Here's what to look for Saturday night when you turn on your television and watch 22 international boxers—including six from the United States and six from Cuba— square off for gold medals in the 11 weight classes at the Summer Olympic Games. The first bout begins at 6 p.m.. EDI:East European fighter*— with his left hand extended to parry mare than jab.AP’s pick: Herrera.106 Pounds Jorge Hernandez of Cuba, a world champion, has good foot speed and is always in position to punch, particularly a good jab and a quick right hand.Byong Uk Li of North Korea. A left-hander. He’s short for a light flyweight, but aggressive with agood straight. left. -AP’s pick: Hernandez.132 PoundsHoward Davis, 20, of Glen Cove, N.Y. A world champion at 126 pounds. He has all the tools—a snappy jab, quick hands and deceptive power.Simion Cutov of Romania. The European champion and world rurmerup. He scores well with either hand, works to the body well and is aggressive. But he can also punch while moving backward, better than most East Europeans.AP’s pick: Davis.The National AAU champ. He punches hard and accurately with either hand. He’s not as bullish as his older brother, Leon.Rufat Riskiev of the Soviet Union. A. world champion and an excellent boxer who fights with his left hand extended and throws stiff jabs and quick hooks off the jab. He doesn’t throw the right often. But when he does, it has quickness and knockout power.AP’s pick: Spinks'.112 Pounds Leo Randolph, 18, of Tacoma, Wash. A high school senior and the 1975 national AAU and Golden Gloves champion. He lacks power hut punches with quickness and accuracy and likes to shoot a right lead,Ramon Duvalon of Cuba. A left-140 Pounds.._Ray Leonard, 2t, o£„ Palmer Park, Md. The Pan-American Games champion. An excellent boxer who, like Davis, tends to be showy. He’s got quick hands and fair power but is troubled by sore right hand.Andres Aldama of Cuba. A left-handed attacker with onepunch knockout power in either hand.AP’s pick: Leonard.147 Pounds178 PoundsLeon Spinks, 22, a Marine corporal stationed at Camp Lejeune, N.C. Twice the world military champ and a threetime National AAU champ. He’s aggressive, can jab and fires both hands from all angles. He can be hit, but also bobs and 'weaveS wtrerr he remembers to.Sixto Soria of Cuba. A devastating puncher with a good left hook and a thunderous right hand. He’s scored three knockouts in the Olympic competition. Two of then came in the first round and one opponent was unconscious for 10 minutes.AP’s pick: Soria.Blood dopingI knew he would sprint because, you know, that extra blood,” Dixon said of Viren. He was making an allusion to rumors that Viren has used the new blood doping” method of having some of his own blood taken out of his veins, then put back in just before competition to give him extra oxygen. This is a new phenomenon in athletics and, so far, it has not been declared illegal.Tatyana Kazankina of the Soviet Union won her second gold medal of these Gaines, capturing the 1,500 meters in 4:.05.48. Fast Germans Gunbild Hoffmelster and Ulrike Kalpezynski were second and third.Miss Kazankina bad taken the 800 meters Monday in world record time. She set the 1,500 record of 3:56.0 last month.The United States swept individual archery competition, with defending world champion Darrell Pace, a 19-year-old Air Force computer technician from Cincinnati and 23iyear-old Luann Ryon of Riverside, Calif.? taking men’s and women’s honors. Pace finished 69 points ahead of the field while Miss Ryon led the women’s division by 39.Russia’s Viktor Saneyev won the triple jump with a leap of 56 feet, 8Y4 inches and became the first triple jumper in Olympic history to win the event in three consecutive Games. James Butts of Los Angeles won the silver medal with a jump of 58 iVi and Joal de Oiiviera of Brazil was third.New Zealand defeated Australia 16 for the gold medal in field hockey. Australia got the silver and Pakistan won the bronze with a 3-2 triumph over the ’Netherlands.Christine Stueckelberger of Switzerland won the individual gold medal in Grand Prix dressage equestrian competition, She outscored two West Germans, her only serious rivals.Polities, drugs and controversy continued on the Olympic scene Friday. The Soviet Union demanded that Canada return 17-year-old diver, one of thrt Olympic defectors. Olympic lt;ficials disqualified three athlet-for use of muscle-buildir anabolic steroids, and athlet-were upset because th organizers of the Games ruled that only six from each natic-may march in the ctosio ceremony Sunday.A Soviet spokesman declare the request for political asylui by 17-year-old Sergei Nemtsam part of a “pre-planned provoe. tion campaign against the Russian delegation that allegedly ircluded threats to kill sprintti Valery Borzov. They demanded that the diver be returned becaus he is under age.The IOC said it was a matte;-between the two government--Canadian immigration officia l said Nemtsanov showed up at the department’s Montreal offic,' with a Canadian friend and made an application to stay. The'-denied Soviet charges that a young woman thought to be a.. Olympic hostess enticed him to defect.A Canadian spokesman said to-next time Nemtsanov appears ai the office he will be asked 4f wishes to speak with Russian ol-ficials with a Canadian witness present.Disqualified for use of anabolic steroids were Mark Cameron, 23-year-old American heavyweight weightlifter from Middletown. R.I.; Peter Pavlasek, a Czech super-heavyweight weightlifter,and Polish woman disqus throwerDanuta Rosani. None won medals. The U.S. Olympic Com-■mittee issued a statement saying it was shocked at the disqualification of Cameron. Philip O. Krumm. president of the USOC, criticized the IOC Medical Commission for announcing the decision without informing the USOC.The rule allowing only six athletes from each nation to march in the closing ceremony was made after the 1964 Games, when various teams mingled on the field afterward. Avery Brun-dage of the United States, then president of the IOC, pronouncedthiS-Hn^’gnified,. although-many thought it showed the Olympic spirit better than almost anything else that happened.The rule was not strictly enforced either at Mexico City in 1968 or in Munich in 1972. ButMontreal organizers deeided it must be enforced. The IOC was trying to get all athletes at least into toe stands.