Hi, everybody I am a new owner of a z750 04 14000 km. Last weekend while I was riding, I heard an acute noise probably coming from the tranmission but this sound is not very loud just enough to heard it thru the helmet on the highway :confuse: It's louder when I accelerate but still present while cruising. I can't hear this sound under 80 km/h. When my bike is on neutral gear and I rev it there's no problem, no weird sound. I did a ride of 160 km and 2 times during this ride my tranmission was stock on gear 3 or 4 and would not downshift so i had to stop the bike go back and forth and move the shifter during 1 minute to get the bike back on neutral gear! Help me plz!!