I'm a new rider and just bought a Vulcan 750 last month. It's a 2002 with about 8500 miles on it. The previous owner took immaculate care of it and it looks like it's brand new. I just noticed that when I let off the throttle and let the engine brake the bike I hear a faint squeaky, chirpy sound. I can't really tell where it's coming from, but it sounds like somewhere towards the front of the bike. Is this a normal sound of the mechanics of this type of bike? Thanks, by the way I love this site, it's full of good info.