Hello, about 2 months ago, I got a Yamaha Majesty YP 125 Bj. 2001 (from private). At first everything was ok, but then the big awakening came. All of a sudden he started to dispose of his oil over the air filter. I asked first with acquaintances what that could be. They meant first….too much oil in it?…..No, oil stand was right (something under Max)….hm, what could it be then? Am to the Yamaha dealer, who meant the ventilation of the crankshaft housing….that w w In the meantime, air filters were degraded and cleaned, as well as the ventilation of the crankshaft housing then all assembled again oil until briefly filled up under Max. After about 250 km, about 300 ml oil came out of the air filter and just this quantity was then also missing from the track rod. And again everything disassembled and cleaned up….to another bicycle professional and there asked for what the cause could be. That meant the valve shaft seals or the piston rings. He would not I don’t think that it’s the piston rings or valve shaft seals, because then the scooter would be bluish or not? Can someone help me here among so many screwdrivers to find or fix the cause? Oh yes, the scooter has about 25 000 km down and otherwise simply runs great….