Topic: After rebuild: Engine break in

[Fritz]

Hi!

Maybe this is a stupid question, since I could just follow the Owner's Manual, but do you have any recommendations on how to break in the engine after fitting a freshly bored cylinder, new pistons and rings?

I've also changed two crankshaft main bearings, the primay shaft bearings and the countershaft along with its second gear, which AFAIK do not need to be broken in.
The bike's a CB550F.

I've just put 20 miles on the rebuilt engine on a twisty road. Did not dare to push it more than 5000 rpms after warming up. Have been quite excited, though
On Sunday, I plan to do a 100 miles ride to the Baltic Sea to rig my friend's Hobie Cat.

So should I do anything else than just warming her up, frequently change revs and not get her past 5000-6000 rpms?

This is my first motorcycle BTW.

Cheers
Carsten

[Leanier]

Not sure about how others do it, But I have been using this method described on this page for the last 3 rebuilds I have done.  I tend to go a little easier than they describe, but not super easy.  Have had great results.
Heres the link:
http://www.ntnoa.org/enginebreakin.htm

[ksmith0034]

Here is another site to read:
http://www.mototuneusa.com/break_in_secrets.htm