Break-in period: how long?

Reds got a whole procedure.What we did was start the bike and give it about 2 minutes of idle to 3500 or a bit more down to idle,up and down,let it completely cool down and repeat a couple of times.Take it around the block a couple of times,NO LUGGING.Keep the revs to under 4000 but be smooth.Do about 500ks at that,maybe a bit more,vary the revs and load.Don't go heading to big mountains or sustained expressway runs at the same load and revs.At 500ks toque the head and change the oil.Then go at it a bit harder,after 1000k its all yours.BTW if you can contain yourself this your a better man than me.I had a few slips in discipline.
 
I'm already outside those parameters.  Yesterday I did a short period of idling and revving it to 2500 rpm max.  Today I rode 10 miles around town, varying the revs and keeping it under 4000 rpm, and avoided lugging it.  Motor gets hot!  Still very warm after two hours sitting in the garage.
 
If you do a search on this there are heaps of opinions.From the hard brake in to being anally gentle.To me as long as the dreaded glazed bores,being to soft.Or the broken rings,over hard brakin are avoided,somewhere in the middle you good to go.There is the fear of braking stuff after spending heaps on the build.Whatever going to happen will,enjoy the bike and don't worry to much.Thats coming from someone who had bucket loads of shit happen after my build.You will be right.
 
beauchemin said:
I'm already outside those parameters.  Yesterday I did a short period of idling and revving it to 2500 rpm max.  Today I rode 10 miles around town, varying the revs and keeping it under 4000 rpm, and avoided lugging it. Motor gets hot!  Still very warm after two hours sitting in the garage.
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My Motodd was running really hot too on the initial few runs. I was sort of concerned about it but figured the motor was tight so gave it the benefit of doubt.
Would love to have one of those infrared thermometers.
What I did was,
I started my motor using Red's instructions then went for a 80kay ride letting the motor spin up freely trying to keep it below 5K. It wanted to rev!!
Next run I did the same 80kay ride then dropped the oil and check torque and valves. Another oil change at ~500kays and head check then shes good to go!
 
Vince said:
Reds got a whole procedure.What we did was start the bike and give it about 2 minutes of idle to 3500 or a bit more down to idle,up and down,let it completely cool down and repeat a couple of times.Take it around the block a couple of times,NO LUGGING.Keep the revs to under 4000 but be smooth.Do about 500ks at that,maybe a bit more,vary the revs and load.Don't go heading to big mountains or sustained expressway runs at the same load and revs.At 500ks toque the head and change the oil.Then go at it a bit harder,after 1000k its all yours.BTW if you can contain yourself this your a better man than me.I had a few slips in discipline.
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Ha ha, 100ks change the oil then ride it like you stole it was the run is procedure for the Gelati, we'll see how well that all worked out tomorrow
 
Surely no magic to this? Just avoid heavy load, revs not material...if motor happy then rev it. Oil change and re torque at 500 miles though I have changed the oil sooner ...depends how clean you are when rebuilding, but you don't want crap circulating more than you need to.
 
Agree with Nick7- my last engine I got near 200psi on my compression guage (up from 120 or so on shagged pistons), reckon the rings sealed OK running it in that way. :D
 
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