I've always broke in the way the manual says to as well. I'm not sure what to think of it, it makes sense.

 

Gonna have to give that break in theory a try!540 and smaller ports coming!

 

Someone finally read it!!! Geesh! [img]i/expressions/face-icon-small-happy.gif[/img] It makes perfect sense to me, too. In fact this is how I've always done it and never had a problem, either. He points out that break in is different now than it was many years ago. Something to ponder. He may be onto something....

 

what do you think the GYT-r pipe, jet kit, 13:1 piston and the YZ cam iare, its no different than the HRC kit

 

I break it in how I'm going to ride it. W/O going extended periods of time w/ high rpms....which is pretty much the same as this link states, unless the way you normally ride is putt-putt.