Motorcycle Repair: Kawasaki Ninja receiver-oil bottle issue, crankcase pressure, perspiration problem


Question
Greetings. I am an owner of Kawasaki 2006 ZX-RR (600cc)Ninja bike. My bikes receiver-oil bottle (evacuation part of an air cleaning system as I know)getting full pretty much and quick! In about every 50km's it gets totally full. I do drive my bike in high revs mostly as it is possible. Also it feels like bike is having some lack of performance related with this unusual perspiration problem. I have already contact and tried couple of different setups or maintenance/fixing solutions with an authourized Kawasaki dealer technician however the result has not been permanently succesful! Each time it looked like we got it solved but after couple of hundreds of km's it poped up again. Right now the bike is in its orginal factory setups without any accesories. We ripped of all after market parts (likewise exhaust etc.) and put  all oem parts back on it. Could you please advise me on this? What should we looking for to fix or understand the origin of this problem. Thanks in advance and appreciate any helpful advise.

Answer
what you are looking for is excessive crankcase pressure. This is most commonly caused by too much oil or crankcase vents that are closed off or clogged, I am not sure what type of venting that crank uses, other than the airbox. Also too much piston ring blowby, worn rings-makes for lots of crankcase pressure. What happens to the oil level when this happens ?