My R1 Thread :D

[abhishek.murdeshwar]

Quick update:

Work started today, with all the parts and spares required in place. All the valves have been changed, now the newhead needs to be installed. I wasn't there to see what was going on, but will make it there sometime tomorrow and check it out.

Thats a great news Akhil...!! Btw how long it will take the Yamaha people to put her back in one piece and when can u Listen her..?

[Aryan]

Quick update:

Work started today, with all the parts and spares required in place. All the valves have been changed, now the newhead needs to be installed. I wasn't there to see what was going on, but will make it there sometime tomorrow and check it out.

Great news. Finally, the work has started. Any estimate as to how long before you can start riding the R1 again Rossi?

[MaSh]

Man i just finished reading this thread right from Page 1. The most enticing novel, i have ever read .

Rossi, your baby is going to be up n running soon. Do consider the selling it off decision, its been in the same painful condition as you have been. It also must be looking forward to coming back home and giving you a ride of a life time.

[KwokFist]

Great News Akhil! glad to hear that the service is underway. Hoping to see your bike on the road soon!

[strider]

Awesome man, so max by this weekend or next week your bike should be up and running...

[satyenpoojary]

Something tells me you are already on the road on the R1

[shaggy25]

Thats great News.. Hope that you dont encounter any further problems, what has happened is just too much. Now its time to just enjoy the Ride.
Congrats Bro, hope you Hit the Roads soon..

[Shivanshu]

Rossi great buddy...so all work would be done and she would eb running all fine isnt it... good good and yeah kindly remove the idea of selling her off...as she is the One for you buddy...no gain without pain...waiting for more update

[silver_falcon_46]

Something tells me you are already on the road on the R1

Why? Did you see a status message on FB?

[Streetfighter]

Rossi buddy; could all this mess have happened due to careful running in during the initial few hundred kms? Just thinking aloud as I kind of lean towards the school of thought that advocates hard running during the first few hundred miles.

[Old Fox]

Quick update:

Work started today, with all the parts and spares required in place. All the valves have been changed, now the newhead needs to be installed. I wasn't there to see what was going on, but will make it there sometime tomorrow and check it out.

Thats wonderful news Akhil. It will be a great day when you saddle up your 1 and ride her as you did.

Rossi buddy; could all this mess have happened due to careful running in during the initial few hundred kms? Just thinking aloud as I kind of lean towards the school of thought that advocates hard running during the first few hundred miles.

Streetfighter: My opinion here is purely from an engineering stand-point. I have no intention of initiating and continuing with a debate on the merits and de-merits of a particular method. My statement here is devoid of passion and bias. It is put here with just one background thought: that as those who love motorcycling, we all tend to buy the best of machines that we can respectively afford. There's a lot of money and emotion involved and attached to the motorcycle. Putting it all at stake on the altar of logic that has not been proven enough is recklessly risking pleasure and principle both.

There is a lot of talk of technological advancement in engine technology. A lot has been done but we are yet not beyond reciprocating parts sliding against each other and not stepping beyond even the modestly magical 30% thermal efficiency in gasoline fuelled IC engines. The advancements have come in our ability to produce metals and alloys with consistent properties in very large quantities and very quickly. We have also advanced in machining operations by being able to machine parts to very close tolerences and in very short time so as to achieve consistency that in turn leads to reliability. But there has been no great change on the thermal losses, the frictional losses and metal fatigue and creep.

Gradual loading of a new machine (the 'running in' as we call it) is still as relevant as it was for Ford model T. The metal parts still need to 'bed' with each other. The components still need to be 'heat-soaked' at their operating temperatures to homogenize their crystal structure so that it transfers heat in a consistent and predictable fashion. The 'cross-hatch' pattern still needs its ridges to be ground down but not ground off, to catch and retain oil that keeps metal away from metal.

The 'hard' run-in does retain relevance for high-performance short term operation. Does a track racer have enough time to run-in his engine for a 1000 miles between events, more so when it will probably be worn out beyond tolerance within half that distance of competitive racing? Engines, all engines, depend upon heat management and lubrication to work reliably. Let the heat build-up spiral up or reduce lubrication and you get identical damage. And this has remained true for decades. Liquid cooling with ethyl glycol has been around in aviation since the late 1930's while it could only get to passenger cars (for us at least) in the 80's. And that made a huge difference. Not because engines ran cooler but because they could be cooled consistently in a variety of scenarios.

What saddens me is to see people subjecting their little 150-200cc 'air-cooled' engines to the 'hard' run-in, thrashing the guts out of a new engine without realizing the significance of 'heat and lubrication' in engine operation. A liquid cooled engine can still stoically take the abuse of hard run-in as there is an appreciable amount of reserve cooling capacity available in the enthalpy of the coolant. But small air-cooled engines have no such luxury.

When the intended usage of the engine is for long years, it would be prudent to use it 'mostly' within 80% of its peak capabilities. On sbk's like the R1, that means normally not revving it beyond 10-11k rpm. Even that 'restricted' usage gives enough adrenalin to tire the devil at his worst. But please don't flog a new horse in the hope of making it habituated at going faster. Horses will always be horses.

OF

[samyakmodi]

@OF

that explains a lot!!

but seriously, I have seen Eicher engines being run-in at their facility for, before they are installed in the body/chassis. they do it to check the engine thoroughly for any problems.

shouldn't that be enough time to "run-in" the engine? i mean the metal parts would have bedded well during those hours....right?


**loved the restricted 10k-11k rpm

n the air-cooled, liquid-cooled logic makes lot more sense than anything

[Ranjith]

Brilliantly put OF. I was the one who always believed in the light Run-in of any vehicles. For me it makes sense to hold all the horses for inital 1k and then unleash all them later.

[gsferrari]

I don't believe in run-in. I just ride it the way I want to at that particular moment in time. What I do is give the machine a break after every 30 minutes of operation to cool down before heading off again. I've never found any benefit to following a run-in regime. I just take it relatively easy and don't HOLD the machine at a stressed point for an extended period of time. Take it up...back it off...cool it down and repeat without looking at a stopwatch like an anorak.

I can't "rip the tits off" any machine. It just pains me to hear an engine screaming in agony. Even on the MT01 (I've been up to 185 so far) I just let the revs build gently...let the load come in slowly...and back off the moment I've had my cheap thrill before it gets expensive.

Right way...Wrong way...this is MY way

[Old Fox]

@OF

that explains a lot!!

but seriously, I have seen Eicher engines being run-in at their facility for, before they are installed in the body/chassis. they do it to check the engine thoroughly for any problems.

shouldn't that be enough time to "run-in" the engine? i mean the metal parts would have bedded well during those hours....right?

The 'running-in' we are referring to here is under load. Even all motorcycle engines are run on the production line, as you rightly say, to check them. But the actual bedding in of the different parts happens under load.

The Eicher engines are a different category. You don't 'red-line' a tractor or even a Canter for instance. Moreover, these engines spend most of their lifetime at moderate rpm's and so the gradual run-in is incidental to their use.

I can't "rip the tits off" any machine. It just pains me to hear an engine screaming in agony.

GS: You ARE managing the heat part there. And so not suffering the consequent unreliability.