2011 R1200GSA struggling to accelerate at high rpm problem!!

I logged my ride and changed up the excel doc to be readable, if anyne wants to have a gander, it seems to cut logging after 4500 rpm which doesnt help as thats not my problem rpm.

But something might stand out.

Its attached and zipped
 

Attachments

Mistacat said:
Only suggested GS911 to laptop via USB as I find the Bluetooth to mobile unstable, Frustrating when a couple of yards down the road and the connection drops out.
Might just be my phone, so give it a try as it is the easy option.
Click to expand...

No not your phone;) your bike and it's startup sequence..

You turn on the ignition, wait 10 secs, pair the GS911, start logging , press the start button, and off you go.

but the poxy bike cuts the power to the GS911 as you start the bike, so the bluetooth connection gets dropped

You have to start the bike reestablish the 911 connection, and then logging will resume lol

damhik ;)
 
Santa-2512 said:
No not your phone;) your bike and it's startup sequence..

You turn on the ignition, wait 10 secs, pair the GS911, start logging , press the start button, and off you go.

but the poxy bike cuts the power to the GS911 as you start the bike, so the bluetooth connection gets dropped

You have to start the bike reestablish the 911 connection, and then logging will resume lol

damhik ;)
Click to expand...

Yeah checked it was logging before I rode off.
I cant see any issues.
Problem is I love this bike lol.
Steptoe hopefully can find something amiss
 
DrFarkoff said:
did you try riding it with the lamda probes disconnected??

Just try it

i had a couple of right effers to diagnose and it was a probe fault when hot
Click to expand...

So weirdly I disconnected the O2 sensors. Bike starts and idles perfectly and rides as normal??
The at high rpm I couldn't get it to flat spot at 6000rpm. If I rolled on at 80mph at 6k it seems to pull to 110 easily.

Will leave them disconnected and see again tmrw on way to work.

Should the bike not run worse with no 02. ECU have a backup plan for fuel ratio?
 
Moonmanzn said:
Yeah checked it was logging before I rode off.
I cant see any issues.
Problem is I love this bike lol.
Steptoe hopefully can find something amiss
Click to expand...

Did you download the software from here?

www.live-graph.org

it makes viewing the data a bit easier, (although it appears to be not working at the mo.. lol)

i will see if i still have a copy somewhere and see if i can get it to you
 
Did you try unplugging the lamdas? you need to do both at the same time It won't harm the bike it puts it into a default fuelling map

Like I said I had 2 or 3 bikes with this glitch and unplugging their lamda's negated the problem

Just reach down and unclip them and secure them so that they don't burn their wire or connector on the exhausts and go for a half decent run
 
Santa-2512 said:
Did you download the software from here?

.

www.live-graph.org

it makes viewing the data a bit easier, (although it appears to be not working at the mo.. lol)

i will see if i still have a copy somewhere and see if i can get it to you
Click to expand...

I tried that site but was down, but I formatted it in excel and could read the data well
 
DrFarkoff said:
Did you try unplugging the lamdas? you need to do both at the same time It won't harm the bike it puts it into a default fuelling map

Like I said I had 2 or 3 bikes with this glitch and unplugging their lamda's negated the problem

Just reach down and unclip them and secure them so that they don't burn their wire or connector on the exhausts
Click to expand...

Yup, see my post above. Took them off and bikes idles and rides fine and at higher speeds at my lugging spot it seemed fine. But rode same spot so many times its messed with my head.

Going to keep them disconnected and try it tmrw morning a few times and see if its definitely stopped holding back at high rpm.
 
DrFarkoff said:
Did you try unplugging the lamdas? you need to do both at the same time It won't harm the bike it puts it into a default fuelling map

Like I said I had 2 or 3 bikes with this glitch and unplugging their lamda's negated the problem

Just reach down and unclip them and secure them so that they don't burn their wire or connector on the exhausts
Click to expand...

Did you just get news ones then I'm assuming?
Theres a used set on ebay that are "working" for 50£ that I might buy and fit.
 
Can you do another log tomorrow please.

If disable some of the stuff you dont need, it helps the logging,


If you can you could disable some of the stuff you dont need to map ...

time in ms, voltage, battery voltage

if you can ,can you put gear position into the log,

and have a search to see if you've cut the high rpms out...


I havnt got my gs handy so cant pull the software up (android)
 
Moonmanzn said:
Yup, see my post above. Took them off and bikes idles and rides fine and at higher speeds at my lugging spot it seemed fine. But rode same spot so many times its messed with my head.

Going to keep them disconnected and try it tmrw morning a few times and see if its definitely stopped holding back at high rpm.
Click to expand...

what is this lugging spot, can you describe it in lots of detail. and give a rough time how long into your ride it is? that way it may be possible to look closer at your data

Your data file is a bit messed up btw -

it repeats the same chunk of data over and over....

im just going to post one of my logs for you to compare

edit -- dam too big pm me your email addy and ill send it across

my logged to over 5K ;) included speed & gear btw ;)
 
Santa-2512 said:
what is this lugging spot, can you describe it in lots of detail. and give a rough time how long into your ride it is? that way it may be possible to look closer at your data

Your data file is a bit messed up btw -

it repeats the same chunk of data over and over....

im just going to post one of my logs for you to compare
Click to expand...


Hi Santa, thats strange as checked my laptop log and seems legible? See screenshot attached.

So my problem, if im riding around town and B roads it pulls lovely through the gears. My issues raises its head on the motorway.
If im in 6th gear and cruising at 80mph and accelerate to overtake at around 5500 to 6000 rpm the bike seems to hold their as if in a strong headwind, if i roll on slowly it seems to pull through it and then will accelerate harder.

You can feel the bike almost hold its breath and keeps its speed even through you have turned throttle. its doesn't buck or sputter, its just feels like I have hit a speed limiter almost.
 

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  • Test Screenshot.jpg
    Test Screenshot.jpg
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this is at the highest rpm i could log.

Settings dont have a max rpm setting.
 

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  • Log2.jpg
    Log2.jpg
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Santa-2512 said:
Would have been handy to see gear and speed ;)
Click to expand...

Lol Sorry, speed i deleted as just said zero across the whole range. I didnt select gear as thought i would be in 6th anyways as motorway and at 5500ish and then chck all the values.

None of my plans seemed to have worked
 
Moonmanzn said:
at high rpm I couldn't get it to flat spot at 6000rpm. If I rolled on at 80mph at 6k it seems to pull to 110 easily.
Click to expand...

when did this become a symptom ????

my hex head does this from 6300rpm... its sporadic and its engine knock winding off the spark.... Most of the time its normal, but usually in high engine temp and high ambient temps if you really spank it, you can find coming off a corner it makes it feel like you have a bungee cord rather than a bowden cable. And the response for 50 yards is pathetic.

Perversely fuel brand or octane adds nothing to the party, its constant nuisance with no change even on 99 octane shell

Did you change the rear tyre recently? longer gearing brings it in more heavily. It mostly went away when I ran a low profile road tyre, and the bike was much more lively... then with the LC coming out other options to run the right aspect ratio came about. Its just enough to make it work hard enough to trigger knock sensors into having a meltdown

don't forget (unrelated to engine knock) the stupid traction control is permanent performance hit (much reduced in sport...) and completely normal with it disabled. Same on nearly any bike made, they fitted a throttle to control the engine output, you seldom need a computer "trying" to help, especially as on most bikes it turns up half an hour after you already noticed.
 
botus said:
when did this become a symptom ????

my hex head does this from 6300rpm... its sporadic and its engine knock winding off the spark.... Most of the time its normal, but usually in high engine temp and high ambient temps if you really spank it, you can find coming off a corner it makes it feel like you have a bungee cord rather than a bowden cable. And the response for 50 yards is pathetic.

Perversely fuel brand or octane adds nothing to the party, its constant nuisance with no change even on 99 octane shell

Did you change the rear tyre recently? longer gearing brings it in more heavily. It mostly went away when I ran a low profile road tyre, and the bike was much more lively... then with the LC coming out other options to run the right aspect ratio came in and the knock returned

don't forget (unrelated to engine knock) the stupid traction control is permanent performance hit (much reduced in sport...) and completely normal with it disabled. Same on nearly any bike made, they fitted a throttle to control the engine output, you seldom need a computer "trying" to help, especially as on most bikes it turns up half an hour after you already noticed.
Click to expand...

Symptom? The flat spot/hesitation at high rpm and speeds has always been my actual problem.

I was stating that after running my same test route with the O2 sensors disconnected it didnt seem to have the same issue anymore.

I'm letting bike relax overnight and will try run it again tmrw with O2 sensors still disconnected and see how it runs on the motorway. If its runs well I'll order some new O2 sensors.
 
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