Born and raised in Spokane, Washington, Yarno was one of six children and attended Gonzaga Prep through his junior year. He transferred to Ferris High School for his senior year and graduated in 1973. He was a second team all-city selection at center in the fall of 1972, when the Saxons won their third consecutive city league championship. As a senior, Yarno was but under.
Left-handed and underweight for a center, Yarno was not highly recruited out of high school. He did not receive any offers from Pac-8 schools, only from Idaho and Boise State of the Big Sky conference. Idaho was a better fit for Yarno as it was closer to Spokane, a Division I program, and its offensive coordinator and line coach was a former head coach at Ferris and a UI alumnus. He also had familiarity with the college town of Moscow, the longtime residence of his maternal grandfather Lee Gregory, also a Yarno selected Idaho, then under fourth-year head coach Don Robbins, who had led Idaho to its then-best record of 8–3 in 1971. In his freshman season of 1973, the Vandals went 4–7 for the second consecutive year and the coaching staff was dismissed, except forEd Troxel, who was promoted to head coach. Yarno saw action in every game as a freshman, then became a three-year starter in his sophomore season of 1974 under Troxel and offensive coordinator Dennis Erickson. In his senior season of 1976, Idaho was 7–4 for their first winning season in five years. He was a unanimous selection as the conference player of the year on offense, the first for an interior lineman. Yarno was the first Vandal to be named to the Division I first-team All-American, which included a prime-time television appearance on the Bob HopeChristmas Special on NBC on Monday, The All-America team was headlined by Heisman Trophy winner Tony Dorsett of Yarno was also selected to play in the East–West Shrine Game and the The University of Idaho retired his number 56 the following During his senior season at Idaho, Yarno was listed at and. His younger brotherGeorge was the nose tackle with neighboring Washington State in Pullman, and the two matched up often in the Battle of the Palouse in 1975 and 1976, both handily won by WSU at
Pro football
Selected in the fourth round of the 1977 NFL Draft, Yarno made the team as a rookie, but saw little action He played six seasons with the Seahawks, the last five as the starting center, and endured three knee surgeries while a pro. Yarno became the starter in training camp in 1978, but suffered ligament damage in the thirteenth game of the regular He regained his starting position for the 1979 season and played every offensive down. Yarno signed a three-year contract in April 1983, but was waived by new head coach Chuck Knox in late August after the acquisition of Blair Bush from Cincinnati. Not picked up by another NFL team in 1983, Yarno and his brother George signed three-year contracts with the Denver Gold of the USFL for the 1984 spring season. After limited playing time at center and tight end in the USFL and no interest from NFL teams in 1984, he decided to retire from pro football in November at age 29.
Personal
After his third season in the NFL, Yarno married Sue Damrell in Spokane in June 1980. They had two children, Julie and Brian, and divorced in 2000. Yarno married Sandy Hurtig in 2003 and they reside in Coeur d'Alene, Idaho.
