Greetings all, i have 13 yamaha fz6r all stock with approx 13000miles.. the transmission started to act up only in 2nd gear. when in 2nd gear under agressive driving and rpm climbing "preparing to shift into 3rd", it would act as if its slipping in and out of gear rapidly. at first i thought it was a performance issue, but it only did that in second gear. now it wont shift out of 1st gear at all. any ideas on what it could be? and if a complete trans rebuild would be necesary. and how much would that cost ?????