Do I have had the AK550 for a couple of months now. I still love the scooter. It’s comfortable and has just enough wind protection. Not so much that I am isolated just enough to keep me warm on a cold day. The bike runs well. I have done the first oil change. There are two oil screens and and oil filter. You have to pull the two lower painted panels under the floor boards to remove the plastic skid plate. It is say enough. Clean the two filter screens and replace replace oil filter and fill with oil. The owners manual give basic instructions on the job. There is also a free shop manual floating around the net. Ride the bike or start it and warm it up at least once a week. A pig tail is easy to install for a trickle charger if desired. The battery is under the windscreen. I looped the pig tail out of one of the plastic holes for the windscreen mount. There are a lot of electrical dud ads and they will drain your battery over time. The drive belt requires a sonic belt tension tool to adjust. I have measured the belt tension from new with a standard belt tension device. I have used a Harley method to obtain a measurement. I used a 10lbs tension toll I bought for my Harley. I took a measurement from the lower belt guard tab to where I placed the tension tool. I then measured tension and deflection on the kickstand and on the center stand. If anyone is interested I’ll post my findings. So here begins the journey please feel free to ask questions or post findings. Tmax cult members please go bug the MP3 folks.