Don't think that the correct amount of oil will save you, It won't!
My oil was exactly on the full mark, It fouled plugs and spit raw oil out the exhaust
during a 45mph run down a slight hill.
Kawasaki will have to address this sooner or later, sooner I hope.

I lowered my oil level by 6 0unces, about 1/4 down between the lines.
Hopefully this will help, if it doesn't, I will install a trap of some sort.

 

Doesn't the crankcase vent need to be able to suck air in as well as relieve pressure? I thought that an air/water separator only allows air flow in one direction?

 

I thought the same thing at first so before I made the purchase I took it out of the package, you can suck and blow throught it with not much restriction, there is an airflow arrow on the filter, point the arrow toward the airbox and you wont have a problem, I really dont know why the arrow is there since air flows in both directions with no problem.

 

Good tip I've noticed oil in my airbox