Well,what happened to your engine? sure you need a new crank? you can get it fixed and used oversized bearings
I got a bent rod, so a replace is needed. I choose to replace both.
Also, it seems that the crankshaft suffered a high temperature due to his decoloration (it's blue in one of the rod connectors) and it's a little bit deformed.
Apparently, all of this happened due to a bushing broken. It went across all the engine causing this damage.
The bike didn't notice any issue before, also excellent oil levels and proper maintenance.
Kawasaki told me that they never heard about something like this before (at least in my country).
No big mods on this bike. Just a full yoshi, a two brothers PCB and sparks replacement (NGK Iridium, 1 week before the "incident")
Sorry if I misspelled some word, I'm a better rider than english writer