Join Date: May 2016
Year/Make/Model: 2009/ Vulcan/ Custom
Just too many variables for one to say, for certain, that break-in procedure was the difference.
I agree, just stating the identical street bike/different break in comparison experience I have had.
Also why I suggested research.
I have always broke in every new motor hard from dirt bikes - quads - autos and have always ran better than the recommended, from banshee's - 450's bike and quad...
The factory runs a break in on a new motor prior to or just after install.
However a bench built motor is different.
LEAVE NOTHING ON THE TABLE !!!!!