I'm lucky enough to occasionally ride my wife's scooter in trade for maintaining it and keeping it ready to ride. What a hoot. I love the feeling of riding down a country road at 60 mph sitting in an office chair. However, I just spent most of a day simply trying to change the engine and hub oil on a Vespa LX150. I have no trouble rebuilding automobile and motorcycle engines but haven't had a simple maintenance procedure puzzle like this since I used to help a friend work on his Fiat 128 decades ago. The owner's and shop manual were absolutely no help in locating the hub drain plug. Could it be that bolt over the middle of the wheel or does that do something else? Is there a reason the engine drain is located directly over the centerstand? How do you get a socket on the drain? How can you get a wrench on the spin-on filter? After spilling about half engine oil trying to catch it in a pan, and using a vacuum pump to suck out the hub oil instead of risking removal of the unidentified bolt, I get on Youtube and find out that the standard procedure is removing the exhaust system and rear wheel before starting work. Remove the exhaust and rear wheel for an oil change? You're kidding right? So, are all scooters so strange to work on or is it just another example of the way Italians design machinery?