+1hiero said:I'm assuming you turn the bike off after you warm it up? and you're waiting 3-5 minutes before you check the window (on the right side)?
Sorry for the basic questions, I don't think you're stupid, but if you don't see any evidence of an oil leak anywhere, I would be hesitant to say you have one
Not that we think your stupid but from your response it sounds like your checking the oil with the bike running.
I had the same problem late last year and it was the battery. I got the same click when I thumbed the starter button. I would start by replacing the battery. While your at it make sure you clean the ends of the cables and treat it with an anti corrosion product. They can be found at most auto parts stores.