You would need to live close to the factory to use the factory test facilities. But chances are you would have a easier time getting a job as a writer at one of the cycle rags and work your way up to test drives, since all the companies give the rags bikes to test ride for a set period of time. That way you ride on the roads you want to etc. But again, chances are you are gonna have to live around southern California where most of this stuff comes out of.
Depending on where you live you might want to explore getting involved in motorcycle "adventure" riding. It is where people would pay you to house them, feed them and provide a motorcycle for them to be able to ride on some sort of adventure. If you live in a mountainous state, the great local roads that outsiders would not know. If in a desert state, on/off road rides thru the desert. If along a coast-rides along some great water roadways. Of course you would have to supply the bikes, the gear van to take their luggage to the next stop, and a replacement vehicle for when your customers bike that you supplied breaks down.
