Been having a problem with changing gears on my '00 VTR250. Most times it works perfectly. But every now and then it will not find neutral when stationary(this may be more a technique problem being a newbie) and other times it won't come out of neutral. This last one recently occurred when I was the second vehicle in a line of 10 at an RBT(on my first big ride as well!). After delaying everyone putting my helmet etc back on, I couldn't get the bloody thing in either first or second. Had to shut down and push it out of the way to let everyone else through. I tried being gentle, normal and harsh on the gear level to no avail. As soon as I had pushed away and tried again, it worked perfectly. I know very little about gearboxes so is there something I am missing about how to avoid getting the gearbox in this situation? Or is this a mechanical fault? Thanks in advance for any advice.