I have FZS1000 2002. Currently experiencing, let's say, a "hiccup" while I'm hard on the thorttle in the second gear. I have a feeling that something is slipped in one moment. This is happening only in second gear on hard acceleration, on about 5,5k rpm... It doesnt stall, or continues to do that. In only happends in that particular moment. It doesn't occur in other gears. Bike runs smooth, powerful, noise is perfectly normal. Did anyone experienced the same thing? I'm about to replace chaing and sprockets, since they are on the end of life... I changed the sparkplugs, cleaned air filter and done oil change. Any idea or info are welcome.