any had shifting problems? my shifter is hanging "up" after going in 2nd. changed oil about 1000 miles before this started. same oil as always, amsoil 10-40 for bikes...no problems prior to this. also in 1st and 2nd i'm getting a rough vibration that wasn't there before. imminent transmission failure?
Just throwing this out there, but some have suggested that a re-torque of engine mounts would settle some vibs. Might help some. As soon as it's not 110 degrees I am going to give it a try.
Amzoil reduced the amount of zinc additive in their oil. Try adding a zinc additive to the oil. There are several brands available on ebay. It worked for me.