Aprilia leonardo 125 PROBLEM!! PLEASE ASSESS YOUR ASSISTANCE!!!!

Hello! I bought an Aprilia Leonardo 125 year 20ß02 with 10000km and now read on an Aprilia Leonardo homepage how to take a look at the scooter! It says: turn out the oil rod. Start the engine, it is not allowed to spray out oil at idle. Thumbs on the oil rod opening, if gas escapes in larger quantities, then do not buy. DOES THAT?!!?! I have tried this now at mine, but it sprays out very probably oil and it also comes from a large amount of air. from, which, like compressor, leaves the engine…… driving it does perfectly, only makes me worry about this test, because they warn yes on the homepage, if gas exits then not buy….. had during the ride really not noticed that any complications have occurred or something should not be right! I ask for EURE HELP And your STATEMENTS!!! Love greet domsn