I was riding my 02 zr800 cce today and i think I have some issues. When I go to take off at about 4000 rpms the motor cuts out for a second and then keeps going. It usually only does this once and after this it seems to bog and skip a little at 4000 to 5000 rpm. anything else seems to be running top notch. any ideas? I also notched that for 0 to 20 mph the speedo needle seems to be bouncing.