Quote:
Originally Posted by HawkTwoFifty
Thanks Megadan, can you please tell me where I may find that thread? Thanks!
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I actually cant find it there. I know I posted it somewhere...
Anyway, my methodology can be broken down into something simple.
Before cranking that engine hard you want to give the engine at least 2 or 3 full heat cycles. That means idle it or ride it gently for a few short miles and then let it cool fully. After that, chanhe the oil, check valve lash
Next,
I ride it around gently until the motor is up to temp and then take it out for a good 5 or 10 minutes, giving it progressively more throttle, up shifting and downshifting often. Lots of engine braking and accel loading. At this point i never go to redline or go wide open.
Park it, let it cool completely. I changed the oil, but you dont have to if uou dont want to. After it has cooled back down, I take it out again and ride it normal until its up to temp and for 10 to 15 minutes I progressively give it more and more throttle and wind out, finishing with a couple of full throttle high rpm runs through the gears followed by a downshifting decel through each gear, cruise for a minute or two to let the engine temps come down, then repeat the same thing a.couple more times. After that I shut it down, let it cool, change the oil, and check the valve lash.
After all of that I ride it business as usual. They key to a hard break in is to help seat the rings and initiate the
connecting rod to stretch. Doing this early will prevent ridge buildup from causing the main compression ring from loosing its seal on a ridge later when the rod stretches later on in life.
It is important to be methodical, check things often, let the engine cool, and keep an eye on every detail. This is a real hard break in. Just going out and wailing on the motor with no regard is just abuse.