Break in secrets

[TheRepairMan]

Jestal's a schmat boy for his age!

 

[BugR]

My only advise on the Motoman protocol is when you run that last set make sure that there are no LEO's around, you are moving pretty quickly @ 9K rpm in 4th.

 

[tripletango]

My buddy always used to flog the hell out of his English sports cars from the word go. Incredibly they were always faster than mine where I broke the thing in like a little old lady.

The engine has to be worked to set the rings, but not hard enough to create localized hot spots.

Everything in moderation my Grand Father told me. However a little flogging before the first oil change at 50 miles can't really hurt can it?

 

[fjr]

The only actual time I can quantify break in properly, by the book v. break in not by the book is this example. A friend and I both bought 91 Geo(Suzuki) Metros together.

That's right Geo Metros, I'm notouriously cheap. I broke mine in by the book, varying RPM and no lugging etc. I did an early oil change as well, around 1500 miles. My friend is the kind of person who is always late for work and drove that way from day one. My Metro, last I heard was running strong at 178K. My friends needed a rebuild around 100K and she got rid of it. What does that prove? Nothing. I don't have any break in secrets but I still do it by the book except I do an early oil change. 46 miles on the FJR and it was changed.

 

[Centerline]

Breakin, don't need no steenkin' breakin. Off the showroom floor....open throttle to stop, the ECU will limit the revs, dump clutch, then shift every time the needle gets into the red zone.... :clap:

 

[tripletango]

The Italians that build Moto Guzzis have a great way to achieve break in. Go to the twisties or the hills and ride it at reasonable levels. Exercise the engine and transmission with plenty of throttle work and gear changes but don't go overboard. Let the engine heat up on throttle and cool down off throttle as much as possible to seat engine parts. Don't exceed 5000 (80 mph) rpm for first thousand miles and avoid full throttle use. Never use full throttle from low rpms at any time even after break in

From 1000 to 1200 miles use 6000 rpm max and ride in a "more lively fashion" Use full throttle only briefly.

After that ride like you want but don't exceed 7500 rpm.

First oil & filter change 900 miles! That's different.

Oil and filter change every 6000 miles!!

There is 1.7 quarts of oil in the engine sump, it is separate from the trans lube which is probably the reason you can go so long. The clutch is dry as well so it's not contributing to oil pollution

Guzzi engines are pretty bullet proof and known for their reliability so this must work for them.

Everything runs in the lube oil of the FJR so more frequent changes are recommended for that reason I am sure!

 

[tripletango]

I did not do the Moto Man break-in. I pretty much followed the owners manual, except changed the oil filter a bit more. The runs well and never uses any oil. Some how abusing the **** out of a brand new motor seems wrong, but there are also some compelling points for doing so. I think changing the oil more often than less over a long period of time is more important.

Basically the bmep has to be high enough early on to push the rings onto the walls of the cylinder so they seat and seal. This is the principle of the motoman break in. I think that can be acheived by exercising the bike reasonably with occasional full bore blasts when the bike is at operating temps in the first few miles of it's life provided the engine is allowed to cycle down and cool the internals before repeating the cycle. Running it to the red line should not be necessary to achieve this seating sequence.

On some engines really reaming the rings early on when all the preassembly goop is still on the rings can be detrimental.

Hey everything in moderation but do get the cylinder pressure up early on!

This is all a gut feel and based on everything I have read!!