Can't see them touching the cam area either unless they figured it was time to do a valve check. This would be shown in the work order as part of the tasks performed. On the clock, I doubt they would do any more then needed, as in shift forks and put it all back together. Covers and cam chain timing and call it done , most likely.No idea. It was a low mileage bike when I got it a 2 years ago. It had around 11000 miles. Now about 17000. I will dig into more next week. I was devastated to see this. Tempted to get a used engine to drop in it and do a tear down later.
Last year I had a shop change my shift drum because it was sliding out of 2nd. I know they had to split the case. I don't think they would mess with the cam caps but maybe. Or it has always ran like 💩 since I owned it and I just figured its how it sounded. Frustrating to say the least. I think I will just grab a used engine at this point. It will give me a great parts engine.