Take is easy the first 200 miles. In other words don't stress the engine hard.
1) Cycle the engine gently accelerate, then back off. Do this over and over again as much as possible.
2) Keep it low RPM say under 4k for the first 50 or so.
3) After the first 50, gentle acceleration but let it rev up occasionally.
4) Never hold one RPM, always cycle the engine speed.
5) Some say within the first 20 miles (make sure you warm up the engine) to accelerate a few times pretty hard. Loading the rings is not a bad idea. Just don't over do it. After the first 20, then be a bit more gentle.
The heat cycling helps the rings maintain their temper(does not create the temper), very important for the first 50, just don't load the engine too hard (no prolonged hard acceleration), let any imperfections wear themselves in.
A little patience helps the engine live a long and happy life.
Oh you could break it in hard and risk the rings not tempering correctly, or risk an imperfection to overheat and cause a seizure that will grow over time and one day cause a catastrophic failure. Maybe it would be fine but why risk it? There is absolutely ZERO evidence that a hard break in helps the engine in any way. Where there are thousands of examples where a hard break in caused a failure, or turned a bike into an "Oil burner".
Just the humble opinion of someone who worked as a motorcycle mechanic (factory trained Kawasaki, Yamaha, Suzuki, Triumph, etc) and has seen what a poor break in can do.
Last edited by TedG; 02-28-2018 at 05:09 PM.