Yup,down somewhere else a guy has a YFZ with a 465 YZ engine on it, that's pretty cool I think.
I still say that if someone from the Aftermarket would cast a good watercooled jug & head for the YFM engine that would make some good power, something with good port design, maybe a 4 valve setup, Idk. We could still make awesome power with just the 2 lil valves if everything else was right. With as many Warrior riders as are out there that overall love the machine but would love to make 35-40hp w/o a ton of fancy custom work....I think there's a good market for it.