This is my new toy.
http://www.thermal.com/
It is a thermal imaging device that plugs into your smart phone. You can take pictures with it or even video. There are a lot of things that you can use it for. It's features are impressive for only $250.00. If you think a scooter component is heating up, you can actually see if it is. It might be good to take reference pictures and email them to yourself.