The guy (Steve Prokop in Dundee, Oregon) who redid my cylinder heads told me to start the bike, immediately rev it to about 4,000 rpms, and hold it there with one hand on a cylinder. When the cylinder gets too hot to touch, shut the bike off and get your gear on. Head out for a good 20 mile or more ride. Use different rpms but avoid letting it idle and especially don't lug the motor. I don't remember that he listed any maximum rpm, but I probably went as high as 6,000 after several miles. This would have been in 3rd or 4th, probably. The emphasis seems to be on varying the rpms. This is a lot easier to do if you can find a place with no traffic and certainly no police to pull you over for driving erratically!
It worked great. It seemed to seat the rings right away, and I did not hone the cylinders. I could still see the original hone marks in my nykasil and they still worked. My bike had about 60,000 miles on it at that time. Steve said it didn't matter what oil I used, but I didn't use synthetic mostly because you have to change it out after 50 miles or something like that.
