I did have weird coolant issues like 6 months before nothing now. Had various weird issues since I've owned it but only once or twice. Guess it's a ghost bike so to speak...
I'm not mechanically inclined as you might have guessed so I'm not sure what kawasaki meant by the numbers but they said no problem.
I've had oil leaks before but we changed all the gaskets and no more "external leaks" anymore at least.
Bike runs fine without any wierd sounds in general. Only slight problem is it's harder to start when hot. Old battery died on me. Bought new one. Much better but still harder to start than cold.
But it seems to drink oil.