You may need to replace them all... the Yamaha probably uses old analog gauges. On my 2009 Suzuki, the tach/trim/etc... would not carry over. I believe Russ/Streamfixer had the same problem when he repowered with his Yamaha.
Suzuki had a good basic multifunction gauge (tach, basic hour meter, with alarms for temp/oil/etc...) that wasn't too expensive. I went with that plus a trim gauge, then installed a analog hour meter separately. I just noticed Overton's is having a sale on Faria instrument packages (like $160 or so). They probably have a package for newer Hondas. Make sure you get really good instructions, whatever you do. Just looking at the crazy wiring harness on my Suzi makes my head hurt!