Hey, I just bought a 2003 R1 with 10,000 miles on it. Well when I bought the bike it shifted normal but pretty recent after changing oil, it started grind/clunking into gear when warm not when cold. It doesn't pop out of gear and shifts into all gears just roughly. also there seems to be this chattering rattling noise somewhere on bike when i'm in first and let clutch out. when clutch is almost all the way out it makes a rattling noise that is constant until I get moving over 2k rpm's then goes away. it makes noise in every gear when i'm moving below 2500 rpm's. I can't afford to have someone look at it and need some advice from experienced riders, seeing as the r1 is my first motorcycle ever lol. Thanks