I built a 4 x 7 motorboat trap. I use 25k hp argy with a good saddle and I kite yutys and gigas into the boat move the boat a slight ways off beach careful to stay in shallow water to avoid leads. Then tame at your leisure. Fyi to learn to center 4 foundations wide there is a giga boat building tutorial on youtube.
It really is that simple though, they can't reach you or your flier on a big enough rock, so if you don't want to make a trap you can just shoot down from a rock or cliff once the carnos are dealt with. Be ready for a goose chase once it starts running.
I recommend being extremely careful flying around areas where a Yuti may spawn, as it’s roar attack will send your flier into a frenzy and potentially into danger. To tame, try trapping it and shooting tranq arrows or darts (I wouldn’t recommend anything else as this may either 1. Waste materials, or 2. Damage the Yuti so it either loses taming effectiveness or kills it) into its side/back, as the head does more damage instead of more torpor. These are great fighters and amazing for boss fights, especially when paired with Daeodons for healing!