My 1290 s.a.r high speed weave trouble shooting, to cure

Discussion in 'Ridiculous streetbikes with 6 CPUs and too much HP' started by Lewilewi, May 15, 2018.

  1. gsuks

    gsuks Been here awhile

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    As i wrote earlier

    "Can't you just agree to disagree
    Instead of insulting people you don't agree With.

    It Would make the forum
    A mutch better place

    Just my 2 cents!!"

    Let it go
    Give it a rest


    Verstuurd vanaf mijn SM-G935F met Tapatalk
    #21
  2. kokos79

    kokos79 Nomad

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    In this video they're checking for high speed instability. If you notice, when the bike reaches its top speed the rider tries to induce a wobble by giving the handlebars a nudge to prove their point. There's a good reason for that, they're the same magazine that started an investigation on the 1190 instability issues a few years back and found the stock luggage as the cause.
    #22
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  3. Deviant

    Deviant aka KTM 1290SAdvR

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    No. Because this isn't a matter of opinion. And I don't insult people I simply disagree with. I might poke fun, or sarcastically comment, but there are only a select few people I've actually insulted in my 3,500 posts.

    Fact is if two similar objects behave differently it's not due to what they have in common. Ergo, if one SAR/S is stable at 130 or even 165mph and another is unstable at 80-100 then that instability is not caused by what they share. Saying otherwise might deter people from fixing a very real issue.

    Problem with this forum is that everyones "opinion" has the same weight. One person could be a mechanical engineer with a masters degree and 30 years of motorcycle riding and racing experience. The other could be a bumpkin that flunked High School science and is on his first bike. Both might seem credible here to someone who does not know any better.

    Might have made fun of a few people or even insulted one or two, was probably curt or abrasive along the way. But I'd like to think I've helped a fair few people out on this forum. But you're always welcome to block me or anyone else to make the forum a better place for you. I don't because I think everyone has at least something to contribute, well, maybe not everyone. :rofl

    Just my 2 cents!! :thumb
    #23
  4. gsuks

    gsuks Been here awhile

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    No I will not block you

    It wasn't the subject

    It could be any subject

    Even if you might not think you are offending someone
    They mind it offensive

    Just my opinion

    Verstuurd vanaf mijn SM-G935F met Tapatalk
    #24
    Deviant likes this.
  5. dave1021akita

    dave1021akita Adventurer

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    Mine does same, I've tried a lot of things to sort it out! I'm 17st in all my gear. I've found that sports settings are a good starting point then wind the spring up to 8 clicks at rear and springs up front wound in half a turn and rebound up 1 works good for fast road and even takes the 80-120 weave away only problem been that its not a nice ride if your not going quick! so tend to run sports setting and up a couple of clicks on rear spring. I've found screen in lowest position works best for me. I run 32psi front and 37 psi rear (Conti trail attack 2) which I think helps. Put 20w oil in steering damper , which helped. Also found that weather conditions (blustery) have some serious affects. Also try to be as relaxed as possible on it!
    Ive also rode the sas and theres no comparison between the 2 bikes, the sar is best fun out of the 2 and if you had a zx 10 before this you wouldn't enjoy the sas as it's to refined. Keep the thread going with what you do to yours.
    #25
  6. whipit1k

    whipit1k Been here awhile

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    saying that the instability I personally have experienced is an aerodynamic issue is not the same as saying that the aerodynamics are somehow defective- just that the bike has a large frontal area and as such is pushed around a lot by wind, moved around a lot in turbulent air. Anyone who has ever ridden a goldwing in windy conditions can attest to this- the wing will move all over the place largely because it has a massive windshield. I assume that mr know it all has not ridden a goldwing, being more of a competitive club racer and budding gravel road expert LOL. in the case of the unstable goldwing in windy conditions ,is that also a suspension issue, Mr Know it all? My stability in turbulent air improved a lot by simply lowering my screen.

    The problem with being a self assured jackoff with a textbook case of narcissistic personality disorder , and mr know it all clearly is a textbook specimin, is that you don't even really need to understand what is being said, truthfully probably dont even care to understand. What mr know it all cares about is puffing himself up, popping a few dozen straw men into arguments since its fun and easy, and generally making it clear how superior he is. This apparently makes him a little blind -It is pretty clear that he has never experienced the turbulent air stability issue, yet he continues to blather on about suspension. Those of us who have experienced it can only do a massive face to palm WTF when he continues to go on about it. He is certainly clueless on this issue and the notion that it is to be remedied with suspension tweaks is idiotic. But he would not know that since he has never had the issue. so maybe he will STFU about it?

    I hope nobody avoids the 1290R due to the suspension issue LOL. I mean instability issue. It is not that bad- I have experienced some similar stuff with my old DL1000 and super tenere, though much less pronounced. These two bikes are less likely to be hauling ass at any given time, but when you do get them up around 100mph they do act kinda scary in a way that I have not experienced on low profile sportbikes.. As I have said, ADV bikes are not hayabusas. they are barn doors on wheels .
    #26
  7. never2manybikes

    never2manybikes manybikes

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    #27
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  8. Deviant

    Deviant aka KTM 1290SAdvR

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    THAT explains it. I've been riding my "barn door on wheels" without air resistance! I'll try that and see if I get the wobble. :rofl
    #28
  9. big jer

    big jer Been here awhile

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    "Desperate moto" has once again single handedly ruined another thread, everyone thanks you again for being the insulting know it all prick that you are.
    #29
  10. The_Eccentric

    The_Eccentric Gearhead.

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    This sort of thing happens on every enthusiast's board. I've belonged to dozens of them over the last 20 years. Same thing everywhere.....

    :dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse:dhorse



    ...............and I've learned long ago (and more than once) to never take sides...
    #30
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  11. Deviant

    Deviant aka KTM 1290SAdvR

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    Shouldn't you be changing your oil? I'm sure you've ridden a few hundred feet since the last time. :rofl
    #31
  12. CanineCombatives

    CanineCombatives the sound of inevitability

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    Deviant is obviously a dirt guy who runs full knobbys and excoriates anyone who has a problem with the 126mph limiter cause, “you bought the wrong bike”, how would he know anything about how the bike acts north of a buck on asphalt?
    #32
  13. Deviant

    Deviant aka KTM 1290SAdvR

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    Obviously. Except.
    More examples if two's not enough: Is your 1290 SAR unstable at high speed? 80mph+. Seems the issue occurs well under the SAR's limiter. But considering how problematic they are maybe it's a good thing KTM locked them down. :lol2
    #33
  14. BDO

    BDO Been here awhile

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    My 990 does the same thing under hard acceleration at 80 mph.


    Sent from my iPhone using Tapatalk
    #34
  15. CanineCombatives

    CanineCombatives the sound of inevitability

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    As I said on the other thread, mine is like a like a laser, bars are dead still, any speed, accel or decel.
    #35
  16. paquo

    paquo Been here awhile

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    yup, my 1090 does the same regardless of suspension settings, time to try the better damper
    #36
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  17. Lewilewi

    Lewilewi Ride it like you stole it......

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    Reset rider sag today...book says 55mm each end...

    I'm running 53mm rear 56mm front( very slightly arse up, this is rider sag - that's me on board solo no luggage..hooligan mode..

    Right...im ready for, and deserve a bit of stick here...

    I just came back from France..fully loaded two up....a few weeks ago...

    My little legged Mrs, could not get on the bike in all her winter kit with the panniers on, could not get her leg up high enough to the passenger foot peg...

    You know were I'm going here lads....

    I completely forgot about this...

    To help her out, I only stopped next to kerbs, and I lowered rear pre-load down to near minimum, which in effect stretches out the front forks, and lowers the arse, in turn exaggerating tank slappers and weave...

    When I got home I did not raise the rear back up, as I forgot it done it...

    Took it out tonight and gave it a few thrashing and I've took a vast amount of the weave away....its certainly made a large difference,

    There's still a weave...its a lot less noticeable tho... Accelerated hard up to 120mph.. TBH very stable till just under that. And now were as bad a weave as it was...

    A huge improvement...


    I'll next check all mechanical items, before continue as planned in my first post, and report back...

    Gentlemen thanks for all the help so far....the thread continues......
    ..
    .
    #37
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  18. Lewilewi

    Lewilewi Ride it like you stole it......

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    Yes at 1m21sec....that looks like the s model the not the R
    #38
  19. Lewilewi

    Lewilewi Ride it like you stole it......

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    Mines not restricted, I don't feel it's problematic either...

    It's a definite bike for a
    performance enthusiast, people that want a bit more than the Japanese are building...

    Im a jap fan through and through...

    But I'm hooked on the ktm, and am NOT missing the track and the zx10
    #39
    Deviant likes this.
  20. Lewilewi

    Lewilewi Ride it like you stole it......

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    By the time this threads finished, I'll miss all the man boob tit wobbling from the shake and weave
    #40