Just bought a 2005 Ninja 500R and I took the MSF course awhile back. I'm having trouble getting the timing right in terms of shifting gears. I notice that it bucks a little when upshifting and engine brakes a little much when downshifting. Remember, I'm in my break-in period of 4k rpm max. I'm just wondering if anyone can offer suggestions on proper shifting and tell me please if a little bucking of the bike will hurt the engine or transmission? I paid cash for this thing and I'm afraid I may be damaging it by not shifting it perfectly. Thanks for your help!