I have an 02 R6. When I am WOT in 2nd gear, at around 8,000 rpm (I don't usually push it WOT past 10k) I have had a had a few times, a sudden loss of power. It would be what you would expect to feel if your chain jumped a few teeth etc.. (the chain is tight)
What sort of isolates this is: Once when it happened, I kept it WOT and a split second later it happened again but trans and engine disconnected and the revs snapped up instantly. Instinctively I shifted into third. This sort of denotes that there is a problem with second gear and staying meshed. I tried testing it to rule out that it could be the way the gears are ridden. Ie, 1st gear I don't WOT because I don't want to pop a wheelie. 3rd gear has less torque then second so less strain is put on it. After riding all gears hard, it only happened in second.
Mind you, this has happened only a handful of times but it seems consistant.
What're your thoughts on: a clutch, or second gear..maybe syncros..but it shifts totally fine..
Thanks in advance.