The traits or manifestations generally considered to be associated with living organisms are organization, metabolism, growth, irritability, adaptation, and reproduction.
The motorcycle has a definite structure--check your various schematics for proof.
It takes in fuel and oxygen, and converts it into mechanical energy, heat and exhaust.
Growth is exhibited by the stuff you bolt onto it, and/or the dirt that builds-up on it.
Irritability (the subject of many entries in this thread) is apparent and takes many forms, sometimes due to neglect.
With your help, it steers, slows, accelerates and has evidenced the ability to operate in various conditions of terrain and weather, so it adapts.
The one thing it doesn't seem do on its own is reproduce, but that's also true of mules and we consider them to be living things, so this point isn't crucial, evidently.
Treat your motorcycle with respect and consideration. The good Karma will wash over you both.