[V-MAN]

I always thought an engine should be "broken in" the same way you will normally use it ... if you ride hard then break it in hard. Nice to see others agree with that same thought!

http://www.mototuneusa.com/break_in_secrets.htm

 

[Wag]

good info

I agree, the guy has that right idea, good info. I think there could be a difference though, with a brand new factory motor and a motor you have some local person build. I think that mechanics have their own ideas and build there motors accordingly. If you go to a builder that does all race or performance motors verses one that thinks he's doing you a favor by setting up clearances tighter for longer average driving engine life there could be a problem. The perfomance guy knows that full throttle operation is part of the break in.
It will be interesting to see the future article on bearing clearances.

 

[hossman]

A long time ago I bought a brand new V65 Sabre. I believed in this theory of breaking in like you drive it also. Well to make a long story short, I trashed the engine in 500 miles and they had to put a new one in. I broke the second one in the way they recommended and never had a problem with it. That was a very fast bike.

That was my experience, I am no expert.


Hoss

 

[hossman]

I have to include that the V65 was a 1985 model and I am sure that it wasn't made to the tolerances that are available today. Therefore, my experience here may be disqualified.

Hoss