I took my scoot to work the other morning with not a worry in the world. On my ride home after work there was some serious vibration from the motor when I needed to climb any type of grade. Also the bike had only about half the normal power when climbing any type of grade. On level ground it doesn't seem to have any problems. Any ideas as to what's gone wrong and how to fix it. Can it be fixed, or should I be looking for a new motor/wheel like I've seen on the 700Li mods thread. Any help is of course greatly appreciated.