Have just changed the belt and pullies and got a few remarks:
Started the work on my '92 because I did not know whether it had been done in the past.
This is how I found the old belt on the right cam:
With the other markings in position, this was one tooth off. Since the belt still looked like new and there was no length difference with the new one, I can only assume that a PO did replace it and it went wrong.
Since it is my first ST1100, I did not notice when driving.
When putting the belt on it can easily be misplaced, so the lesson from this is that one has to re-check the posittions when the belt is on and on tension.
Also, for checking the positions with the plastic cover off, I found it easier to check in between, using a piece of cardboard with the timing marking on it. (Only a few minutes work to make such cardboard, drawing the lines over from the plastic cover.)
Another warning might be in place here: Though it is advisable anyway, I had to pull the clutch cover for replacing the springs. To do that, the right downpipes need to be removed. Though looking nice from outside, they snapped instandly at the rear end.
If you have to remove these, be very careful!
Can't be 100% sure that the timing misplacement was the cause since I also did some other works, but the bike now has a lot more power at lower rpm.
Regards, Rob
Started the work on my '92 because I did not know whether it had been done in the past.
This is how I found the old belt on the right cam:
With the other markings in position, this was one tooth off. Since the belt still looked like new and there was no length difference with the new one, I can only assume that a PO did replace it and it went wrong.
Since it is my first ST1100, I did not notice when driving.
When putting the belt on it can easily be misplaced, so the lesson from this is that one has to re-check the posittions when the belt is on and on tension.
Also, for checking the positions with the plastic cover off, I found it easier to check in between, using a piece of cardboard with the timing marking on it. (Only a few minutes work to make such cardboard, drawing the lines over from the plastic cover.)
Another warning might be in place here: Though it is advisable anyway, I had to pull the clutch cover for replacing the springs. To do that, the right downpipes need to be removed. Though looking nice from outside, they snapped instandly at the rear end.
If you have to remove these, be very careful!
Can't be 100% sure that the timing misplacement was the cause since I also did some other works, but the bike now has a lot more power at lower rpm.
Regards, Rob