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Is belt tracking DIY capable?
Looks like the dealer wrench messed up yet another item. There is zero clearance between the belt and sprocket flange on my bike. I can't see the inboard edge of the belt to check for scrubbing, but I suspect that there is some wear.
Belt position and rear tire alignment
Is there any relationship between the belt gap and the alignment of the tire to the frame?
Here's why I ask - the shop manual front end alignment pretty much ignores the rear tire. The front wheels are aligned to the frame. My belt took 3/4 of a turn of the right screw just to get it off of the flange, and it needs a bit more to get it where it should be. This shifted the rear wheel's alignment to the right, inducing a slight vehicle pull to the left. I haven't experienced a problem, but it has to be there. The bike handles differently than before I worked on it.
If the belt is riding on the rear sprocket within spec, is the rear wheel aligned to the frame? I suspect not, since there are other variables in play.
This is why the laser alignment is better. All three wheels are in the proper relationship to each other, ensuring that the bike will track true. Ignoring the rear wheel and aligning to the frame almost guarantees an error in alignment, unless the belt tracking is a precise indicator of rear wheel alignment to the frame, which I strongly doubt.