Interesting theory. And I have no doubt that if you checked 100 Brand New Teneres fresh off the assembly line they would not have identical tolerances. So that would support your theory partially.Cycledude said:Valves on my 13 Tenere checked out fine at a little over 30,000 miles yes this was the first valve check. I think the big thing is how good did they happen to set them the day they were set at the factory.
I also believe (which is an agreement with your theory) that this plays some part in the various results that we find at our first valve service interval.
But, I don't think the factory settings are the only ingredient involved. There is metallurgy, operating temperatures, fuel quality variances, stress and loads, etc that can result in varying wear rates from one Tenere to another.
But yea, I can accept your viewpoint on this. It certainly isn't insignificant.