Hello all, Quick question... Under VERY hard acceleration, I hear a rattling noise for about a second or so and then it goes away. The sound is more of a tinny clanking sound like someone put a few bolts in an aluminum can. Its very hard to tell where the noise is coming from because I'm doing about 80 when I hear the noise. I have to duck down below my windscreen to hear it too. It doesnt seem to be RPM specific although the most vibration under hard acceleration occurs around 3500 to 4000 RPM. Its not a consistent rattle, for a while I thought it was vibration causing my center stand to clank on the exhaust, but I disproved that theory. No metal in the oil either. I'm wondering if it is fuel related along with carbon deposits inside the engine. Any thoughts?