The bike had now done 32k miles and in line with the service recommendations I thought I'd replace the alternator belt as it wasn't big money.
I got the belt on ebay for £15.50 from Brooks Barn.
So, remove the lighting bar, oil cooler, right hand plastics and the belt cover.
See pic, 2 and 3 hold the alternator in place, 1 is the adjuster that cannot be reached without removing the plastics.
Loosen 2 and 3 and release the locknut and back off the adjuster (5mm hex head, 13 mm spanner).
Using a 24mm socket on the crank pulley turn the pulleys and guide the belt off the alternator pulley until it comes off, reverse the procedure for the new belt and tension the adjuster as instructed elsewhere on the forum using the special tool (your hand) so that you can twist the belt at the mid point between pulleys 90 degrees.
Tighten up 2 and 3 again and set the locknut on 1.
Job jobbed, now put it all back together.
So the £15.50 question, did it need doing? I've taken a picture but it doesn't show well that the old belt had V shaped groves inside the belt the new belt's groves were U shaped. There was also a lot of rubber deposited from belt wear, so from this comprehensive survey of 1 bike I would say yes get it done sometime after 30k miles as a preventative measure.
The final point is that people have been talking about a 740 or 750 belt, this was ordered to fit a Stelvio and turned up as a 730 and fitted without any problems. As I never adjusted it at all it probably doesn't matter within reason what size you fit as long as you tension it properly.
Hope this helps.
I got the belt on ebay for £15.50 from Brooks Barn.
So, remove the lighting bar, oil cooler, right hand plastics and the belt cover.
See pic, 2 and 3 hold the alternator in place, 1 is the adjuster that cannot be reached without removing the plastics.
Loosen 2 and 3 and release the locknut and back off the adjuster (5mm hex head, 13 mm spanner).
Using a 24mm socket on the crank pulley turn the pulleys and guide the belt off the alternator pulley until it comes off, reverse the procedure for the new belt and tension the adjuster as instructed elsewhere on the forum using the special tool (your hand) so that you can twist the belt at the mid point between pulleys 90 degrees.
Tighten up 2 and 3 again and set the locknut on 1.
Job jobbed, now put it all back together.
So the £15.50 question, did it need doing? I've taken a picture but it doesn't show well that the old belt had V shaped groves inside the belt the new belt's groves were U shaped. There was also a lot of rubber deposited from belt wear, so from this comprehensive survey of 1 bike I would say yes get it done sometime after 30k miles as a preventative measure.
The final point is that people have been talking about a 740 or 750 belt, this was ordered to fit a Stelvio and turned up as a 730 and fitted without any problems. As I never adjusted it at all it probably doesn't matter within reason what size you fit as long as you tension it properly.
Hope this helps.