I've been constructing various vehicles for fun for many years. These include kayaks, sailing boats, hovercrafts, and ultralight airplanes. I taught "Shop Class" for many years in the UK, before moving over here and settling down in the Midwest. I believe that anyone can learn to maintain their own motorcycle, trike, or scooter with a little help and encouragement. Remember that a mechanic is just somelone like you who learned to do the job properly. If you are willing to learn you can do it. If in doubt then ask an expert. Safety first!