Okay, I've stripped the front of the ST1300 to get to the windscreen drive gear. FMD, what a task.
The drive gear is worn, shows some very minor signs of wear, but hardly noticeable, see pics.
Difference between pics 1 & 2 is drive has been rotated 180 degrees.
The question is, is this drive worn to the point that a new one is needed? I don't to spend $160 and find out I still have a problem.