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the procedure we use on our race bikes is 3 heat cycles. Run it up to operating temp with a moderate load then shut it down and let it cool. the cooler an engine the faster the parts wear in. The rings now days do not really seat in like they used to with the chromemolly and other metals they are using with the older iron rings ringseat was a issue. Mostly what you are seating now is the valvetrain and the bottom end. I'm not certain on this bike but most bikes have nikasil plated cylinders now. you will wear out the rings and pistons normally before you wear the bore.
And carbon on the pistons and valves has nothing to do with breakin, that is how it is run in general and the crap of gas they used.
The main reason they tell you to take it easy for a while is everything is still tight and needs to seat so you are making more heat and putting more strain than expected.
As far as hondas not being able to be hurt, that is fairly true but I have had to go into several that grenaded. honda does make engineering mistakes every now and then. Last year they had one bike that the cylinder skirt was to thin and kept breaking, I must have built 20 of them.
 
Discussion starter · #23 ·
Desert Runer said:
the procedure we use on our race bikes is 3 heat cycles. Run it up to operating temp with a moderate load then shut it down and let it cool. the cooler an engine the faster the parts wear in. The rings now days do not really seat in like they used to with the chromemolly and other metals they are using with the older iron rings ringseat was a issue. Mostly what you are seating now is the valvetrain and the bottom end. I'm not certain on this bike but most bikes have nikasil plated cylinders now. you will wear out the rings and pistons normally before you wear the bore.
And carbon on the pistons and valves has nothing to do with breakin, that is how it is run in general and the crap of gas they used.
The main reason they tell you to take it easy for a while is everything is still tight and needs to seat so you are making more heat and putting more strain than expected.
As far as hondas not being able to be hurt, that is fairly true but I have had to go into several that grenaded. honda does make engineering mistakes every now and then. Last year they had one bike that the cylinder skirt was to thin and kept breaking, I must have built 20 of them.
Just see THIS
 
when I'm talking heat cycles it has nothing to do with heat treating anything. we run them full out sometimes even on a dyno and then let them cool and then do the process again. sometimes we just let the engine break in on practice sessions.

the finer crosshatch is due to different ring material, iron rings need a course crosshatch chromemolly does not. On our dry sump engines we run rings as weak as 2lb's of pressure and pressure port the top of the piston so combustion seals the rings.

By the way that is a good read, all good points.
 
ok my dealer told me to break in like the handbook says, my friend who sold the bike to me told me to ride it like i hated it.

its hard for me to think that punishing a brand new motor is a good thing, but at the same time i didnt like waiting.

so i ended up running it to 10K every so often, and ended up with 600 miles in about 3 weeks and atleast 15-20 rides.

what do you think, good/bad/ok?
 
bennytozzi said:
ok my dealer told me to break in like the handbook says, my friend who sold the bike to me told me to ride it like i hated it.

its hard for me to think that punishing a brand new motor is a good thing, but at the same time i didnt like waiting.

so i ended up running it to 10K every so often, and ended up with 600 miles in about 3 weeks and atleast 15-20 rides.

what do you think, good/bad/ok?
you will be fine. these newer engines don't take nearly as much to break in as they used to and we pretty much run the crap out of ours right after a build and just use the parts manufacturers recomendations. so far so good
 
Welllllllllll somewhat true

yes it is a total wives tale that it will not let your engine break in.. most of your higher end autos and some heavy vehicles come with synthetic from the factory. I've broken in several engines on full syn and never had any problems
Some cars come with part synthetic from factory.Some cars have the engine broke in from the factory with 100 or so miles pre ran before you even get it.
 
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