Now and then when I check the oil the stick is dry, and the oil has escaped through the crankcase ventilation into the airbox. As far as I know it can be either worn piston rings or a blocked air intake. The rings shouldn't be a problem, they are pretty new and as long as the oil stays out of the airbox the oil consumption is hardly noticeable. When the problems started I did have a pretty clogged air filter, but though I cleaned up the box, put in a fresh filter and even removed the snorkel the oilspitting continued. Not all the time and under random circumstances.

I'm no mechanic wiz so I hope someone here have a clue what's going on. Could the crankcase ventilation have been messed up somehow because of the first oil spills? Could the AIS, that sucks air out of the air box, somehow make it worse? What should I check?

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