To do so I broke two hardened torx wrenches and put a twist in one impact wrench torx socket.
I broke the first T-30 also. Then I tried a T-35 and it worked better.
Not saying you did the same thing, but it might be a possible explanation. It's unpleasant trying to clean out the broken pieces of torx bit. One hopes the filter picks everything up...
Well, I decided not to bother with tying the chain to the cams, and all the other ways to avoid removing the camshafts. I just removed them, not too bad. It doesn't look hard to time the camshafts again. I don't see how those methods work because I couldn't get a single shim out without removing the tappet first.
Most of my shims have no numbers on them. Oh, and one cap was missing one of the locator dowels!
BTW I found two exhaust valves at .003" and one intake was below spec too. I will set everything to max because I prefer not to mess with this again in my lifetime and like getting good MPG also and have way more power than I need. Doing this job made me appreciate my old Guzzi Quota. I could do a valve adjust 10 times on that bike, for the time it takes to do it once on the Adventurer. Maybe I should count my blessings it is not a 4 cylinder bike.
The job for tomorrow is musical shims. I hope the damn squirrels living in my garage don't knock over my carefully arranged selection of camshafts, caps, and shims on the table.