Break in period

[askmrjesus]

Originally Posted by Sean

This is what my piston looked like after 2000 miles with a hard breakin:

Sorry, but you can't automatically chalk that up to a "hard" break in. Any number of things could have caused that damage.

My DR650 thumper was broken in to spec, and the fucker hand-grenaded the bottom end at 16K miles, (I'm pretty sure the shift fork was the culprit). So, what does that prove? Nothing. If shit's gonna break, then shit's gonna break.

I wouldn't rev the ever loving piss out of a brand new engine, but after the first oil change (100 miles), all bets are off.

JC