My cbr1000rr is starting to act a little weird. 1) Sometimes when I turn the key on it doesn't make the little electronic noise. 2) When I hit the start button it doesn't do anything for about 2 secs then makes a weird sound and then the bike will start up. 3) Started to notice especially after a friend pointed out that I ride slightly tilted to the left. Looked at myself and yep I tilt slightly to the left. Looked at tires and more wear is on the left insted of equally amounts in the middle. 4) I have virtually no engine breaking anymore. I left off while still in gear, any gear and it feels like I am in neutral. 5) In higher rpm ranges letting off throttle I backfire. not loud but definitely noticeable.

Any ideas?