It's not a hollow sound or a sputter, there is just.......nothing........for a split second, and then the beast comes alive. Tough for riding - I currently have to plan on the fact that when I come into a corner, and if my rev's aren't up, and I just crack the throttle, I will have a split second of zero power. It is not good.
On a side note - does anybody know what the little steel bar is for that is welded onto the right side of the frame under by the silencer - is it supposed to be a handle to aid in lifting the bike (doesn't work well if that's the case)?