Sorry if this is a dumb question but what exactly is the decompressor lever used for? Is it used under normal riding conditions / situations or only for starting? I remember when I was a kid (I'm 47 now) a neighbor had a Honda 125 that had a compression release that he used constantly while riding. I assume that a compression release lever and a decompressor are the same thing. Is the auto-decompressor designed for easier starting or only to control kickback while starting? BTW I am picking up a 2000 XR650R on Wednesday!! I'm so excited. Current owners says everything is still stock except for gas tank and street kit so I will have some work to do before spring. Can't wait.