experienced

I've always been told to wait a few seconds for the revs to reset after you turn the key before starting a bike. Always wondered what this actually does as I've never experienced any issues on the odd occasion I forget and immediately start it... Anyone know?

Hey all, I am a newer FZ6 owner, I picked up a 2007 a couple of weeks ago. I've been riding it without any issues so far, but I am thinking it would still be a good idea to have someone experienced check it over just to make sure. I am not an experienced rider so I do not trust myself to know...