Hundreds of mourners packed St Leonard and St Mary's Roman Catholic church in Malton, North Yorkshire, for the funeral mass of the young apprentice who was killed in a suspected arson attack.
The 18-year-old died when fire ripped through a flats complex in Norton, near Malton, in the early hours of September 5.
Kyne died with fellow apprentice jockey Jan Wilson, 19, from Forfar, in Scotland.
Father Tim Bywater spoke of the "sickening horror" when news of the two deaths filtered through into the community. He said: "We feel cheated, we feel betrayed. These people were so young, full of life, vibrant, focused, living the dream. What happened was awful. Our reaction shows how much people cared about Jamie and Jan."
Fr Bywater said Kyne's achievements were "impressive". Commenting on the two jockeys who died, he added: "They represent what is best about their generation. We should speak of them often with reverence and affection for all that they have given to us."
Kyne's parents, Gerry and Madaline, were joined by his brothers Brandan, Daniel, Francis and Jason and sister Cassandra for the service, which lasted for an hour and 15 minutes.
In his address, Racing Post journalist Tom O'Ryan spoke of "the little guy with a sharp sense of humour, a twinkle in his eye and an infectious laugh". He told the mourners: "Somebody once said that jockeys are born, not made. Whoever that somebody was, he could have been talking about Jamie Kyne. He was a young man born to ride.
"You didn't have to be a so-called racing expert to spot it. Anybody with even half an eye could see it. Jamie was a pure natural in the saddle. Nerves? He never knew what it meant. He was ultra-confident, totally fearless, frighteningly determined.
"What he possessed was an undiluted passion and enthusiasm for what he was doing, without ever losing sight of the fact that riding horses - especially in races - was exhilarating, exciting and great fun. Within racing every single day, he was living his dream.
"What he had was something special, something you can't teach. A God-given gift: the ability to get horses to run for you, horses that often don't really want to run, sometimes don't want to give of their best. After the good lord made Jamie Kyne, he threw away the mould. He was a complete one-off."