Please can anyone help on two small concerns i have, being new to the Xt660R machine can you shed any light on the following two concerns.

When i start the bike from cold, whilst its warming up theres a metal scraping noise comming from the lower engine area, but as soon as i ride for a few miles and the bike is warm it goes ?

Second thing, i can feel alot of vibration through the foot pegs and handle bars at most speeds, sometimes having to lift my feet off the pegs to rest them from the vibes, is it just a big single doing its thing or should i be checking anything? Strange thing is i have only noticed it since ive had new tyres fitted but that surley would not cause this?

Please Help

NigelT