"Tighten the screws on the back of the seats & around that area" is a cosmetic hit only. When you do that and you remove the seat bottoms and see a lot of black dust then that is a clue. That is pure aluminum from the sprocket.

Tightening the belt will make it wear faster but will alleviate the noise for a bit. The belt should not make noise at all, loose or tight. It's a materials issue not a tension issue.[/quote]

....3000km on my mog & the sprocket is shiny..but its still good, scary thought.
Now its parked till november,its too hot.i guess this coming winter is my last winter to use it.then it must be shipped back to the factory for full upgrades.