Should I try to start it

Yes, absolutely- and what I was getting at is to have it THERE and ready, not hanging on the wall across the shop where you have to make a mad dash tripping over tools, creepers and air hoses to get to it- things can escalate in a hurry. I've been called paranoid, but I haven't burned my shop down yet...!
LOL, LOL, LOL. You should see my shop (AKA Garage). Unless I was standing RIGHT beside the fire extinguisher, I'd trip over something heading for it.