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My R1200S blew its engine yesterday

HIglesias said:
does the failure look something like this? 2005 K1200S
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Completely different engine design and completely different failure mode than what the OP described. :dunno
 
HIglesias said:
does the failure look something like this? 2005 K1200S

IMG_6896.JPG


IMG_6897.JPG


When this bike came in i was hella excited! Always wanted to ride one of these, but noooo someone had to blow the engine!
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Is there a history with the K motors going south too?
 
HIglesias said:
does the failure look something like this? 2005 K1200S

IMG_6896.JPG


IMG_6897.JPG


When this bike came in i was hella excited! Always wanted to ride one of these, but noooo someone had to blow the engine!
Click to expand...
Jesus, catastrophic. You would think the rev limiter would prevent this.
 
you would think so,. bike looks pretty clean too

we also have a gsxr1000 with a hole in the engine too. but this one's missing almost everything! except fairings, frame, wheels
 
Pics would be rather boring as all the damage is internal. (I have not seen the bike with its heads removed.) Again, waiting on cause and next steps.
 
...many of the new gen flying bricks (I4 BMWs) have had issues from what I have heard. The first K12RS's (personal experience) were were plauged with faulty clutch slave cyl's (which just happened to run through the middle of the dry clutch leaking fluid on the dry plates rendering the clutch useless) and I have heard many of the latest gen K's have been popping something in the top end...I forgot the exact issue....but the problem bikes seem to loose cyl # 3 from what I have heard....just through the grapevine....and I think I am looking at it in a pic in this thread

All bikes can have problems....every mfg goes through this, I just try to urge people to not buy on reputation.....many times reputation has a history that has built it up.....each product from a mfg, in my opinion, needs to earn its own reputation....generalizations will get you in trouble!

for the record...someone posted something about BP's race bike and "revving it to the moon".....his bike is probably torn down, rebuilt and re-serviced between almost every race. Its not like the team park the bike and let it sit idle between races, they are gone over, through and prepped to minimize the chances of failure......not to mention that an entire race is shorter than some folks commute......and he probably has a few bits on that racebike you wont get on a stock bike:thumbup.
 
Burning1 said:
As far as I know, all modern BMWs are also equipped with Oxygen sensors. The run a little lean for my taste, but the computer will automatically compensate for a free-flowing exhaust.
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Not quite. The lambda sensors will only adjust the mixture when the system is operating in closed-loop mode, ie at lower rpm's and smaller throttle openings and even then only if the fuelling requirements are within the parameters of the OE map in the ECU.

I've had three R1200GS models to date and they have been coming out of the factory with increasingly leaner fuelling. I originally fitted a full Remus system to my '04 bike and it ran well with a significant performance increase. Fitting the same system to my '07 bike resulted in higher exhaust gas temperatures and a warning from my local dyno guy that he'd seen some dangerously lean air/fuel ratios on '07 bikes. '08 onwards bikes are reputedly fuelled even leaner. On my my current '09 bike I've only fitted the Remus exhaust can until I can have the bike run on the dyno and a custom map made up for the Power Commander which I've now acquired.

I think those folks who fit full, de-catted systems, to the later boxers without, at the very least, running the bikes on the dyno and having AFR's checked may be tempting fate.
 
Anytime you mess with a full system you should ALWAYS have the fuel/air mixture adjusted...miss a bit to the rich side if anything...

A slipon won't mess with the air/fuel much...but a full system without a matching chip or ecu reprogram or PCIII/V-USB would be enough to nuke the valves I would imagine...
 
Schtum said:
Not quite. The lambda sensors will only adjust the mixture when the system is operating in closed-loop mode, ie at lower rpm's and smaller throttle openings and even then only if the fuelling requirements are within the parameters of the OE map in the ECU.

I've had three R1200GS models to date and they have been coming out of the factory with increasingly leaner fuelling. I originally fitted a full Remus system to my '04 bike and it ran well with a significant performance increase. Fitting the same system to my '07 bike resulted in higher exhaust gas temperatures and a warning from my local dyno guy that he'd seen some dangerously lean air/fuel ratios on '07 bikes. '08 onwards bikes are reputedly fuelled even leaner. On my my current '09 bike I've only fitted the Remus exhaust can until I can have the bike run on the dyno and a custom map made up for the Power Commander which I've now acquired.

I think those folks who fit full, de-catted systems, to the later boxers without, at the very least, running the bikes on the dyno and having AFR's checked may be tempting fate.
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this
 
I just loaded the zero maps from the R1200S from 2008 and then the maps with full exhausts...LOTS of changes compared to the stock map...almost 29% more fuel in some part throttle maps...some places there is removal of fuel, but at the lower RPMS to about 80% the PCIIIUSB adds almost 10-29% more fuel...

this was probably just a bike ridden that was WAY too lean...wonder what his header pipes look like...are they super BLUE up near the exhaust port?
 
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Teddy said:
...many of the new gen flying bricks (I4 BMWs) have had issues from what I have heard. The first K12RS's (personal experience) were were plauged with faulty clutch slave cyl's (which just happened to run through the middle of the dry clutch leaking fluid on the dry plates rendering the clutch useless) and I have heard many of the latest gen K's have been popping something in the top end...I forgot the exact issue....but the problem bikes seem to loose cyl # 3 from what I have heard....just through the grapevine....and I think I am looking at it in a pic in this thread
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Unless you're talking about a significantly different K bike than I'm thinking of, the clutch is wet.
 
Burning1 said:
Unless you're talking about a significantly different K bike than I'm thinking of, the clutch is wet.
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"Flying bricks" are dry clutches. Slave cylinders (using DOT4 brake fluid) have had issues leaking in the clutch area, causing engine and transmission seal failures and subsequent clutch failures. Newer K-bikes with the transverse 4 are wet clutches and the actuation uses mineral oil.

BMW likes to confuse their models, too. 2003-2005 K1200GT were with the brick motor, and the 2006-2008 K1200GT's were with the transverse motor. And, the early F650 was a 650cc single, but the current F650 is a 800cc twin.

Sometimes you need an updated scorecard just to keep up ...
 
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nvp said:
- My bike has a full Akro Ti system that was professionally installed by the previous owner at Moto Marin (then, BMW of Marin). No PC to my knowledge.
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Ownership hasn't changed. They just changed the name because they added more makes in the showroom.
 
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ST Guy said:
'Not as confusing as Harley's, though.
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Whats confusing about 3 different engines powering 25 different bikes? :teeth


I am sorry, details, details.....as already corrected, the flying bricks were the flat 4's not the current gen I4's...my bad on the details there, at work, giving 50% of my attention to my post and 50% of my attention to work...:teeth:thumbup.


whyfly...you might want to capitalize "usually" in your post or some of us are going to come and find you:twofinger
.....wait, I sold my Harley....so I can't take that personally anymore...hahahaha.

And for the record, to really get the flames in this post started. From 1998-2003 I saw a much higher percentage of new BMW motorcycles with inital quality/realiability issues than I have seen working with Harley from 2003 till now....I'm just saying...things are ALWAYS what you think.

I can't comment on current issue/new bike %ages, so perhaps I am way off now, but in that timeframe it is the honest truth.

BMW's are very flexible bikes. Almost all of them (well...maybe not the s1000RR...) are good in a variety of environments and when they settle into their break-in most are rock-solid...but the bad ones are BAAAADDD. Kinda like Kawi's and Harley's in that respect.
 
NorCal_SV650S said:
Anytime you mess with a full system you should ALWAYS have the fuel/air mixture adjusted...miss a bit to the rich side if anything...

A slipon won't mess with the air/fuel much...but a full system without a matching chip or ecu reprogram or PCIII/V-USB would be enough to nuke the valves I would imagine...
Click to expand...

I haven't screwed with things on a fuel-injected or fairly modern bike, but wouldn't seriously lean conditions make themselves known with detonation or rotten throttle response? (Written with the tone of "I'm curious", not "you're wrong".)
 
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