Welcome, Guest. Please Login or Register

Author Topic: GSA LC 2015 - serious shaking  (Read 2856 times)

0 Members and 1 Guest are viewing this topic.

Offline OomD

GSA LC 2015 - serious shaking
« on: August 16, 2016, 12:25:31 pm »
Over the last 2 weeks or so my bike has developed a serious shake on the engine, such that it feels like the whole bike is being plucked left and right. This only happens on low RPM, and mostly while kreeping (i.e. not really while stationary).

BMW seems to think it may be the throttle body potentiometer(s) that is uncalibrated/faulty/sticky/whatever, and I have it booked in for Thursday for them to check it out. But, I've noticed it definitely is only while moving, i.e. the propshaft is turning. I don't know if it's related though, and it doesn't necessarily feel like the shaking comes from the back. In fact, the shaking is definitely related to engine turnover (feels like the pistons are pulling it sideways) and not to wheel turning, but only happens while moving. As soon as the revs or the speed goes up she's smooth as butter again.

Has enyone had this happen to their's before?
 

Offline Frannarossi

  • Vendor
  • Senior Member
  • ***
  • Bike: BMW R1200GS Adventure
    Location: Western Cape
  • Posts: 3,599
  • karoorooster@gmail.com
Re: GSA LC 2015 - serious shaking
« Reply #1 on: August 16, 2016, 12:53:22 pm »
Sub :happy1:
If you don't live on the edge,you take up too much space!!!
 

Offline Slaaiblaar

Re: GSA LC 2015 - serious shaking
« Reply #2 on: August 16, 2016, 01:03:46 pm »
My 1200 LC also shakes like crazy when under 20KM/h........... but only after fitting new more aggressive tyres. (Heidenau K60 )
 

Offline Antois

Re: GSA LC 2015 - serious shaking
« Reply #3 on: August 16, 2016, 01:11:43 pm »
Agree, I also experience that with off road tyres
 

Offline Draadwerk

  • Moderator
  • Forum Whore
  • ****
  • Bike: BMW R1200GS Adventure
    Location: Mpumalanga
  • Posts: 7,926
  • Thanked: 39 times
  • My job? Just something I do between rides....
Re: GSA LC 2015 - serious shaking
« Reply #4 on: August 16, 2016, 01:41:05 pm »
Also experienced that with Karoo 3 tyres - what tyres you have on OomD?
 

Offline 0012

  • Double-oh-Tkwarf
  • Senior Member
  • ***
  • Bike: Suzuki DR650
    Location: Rest of Africa
  • Posts: 2,757
  • Thanked: 80 times
  • Race the rain. Ride the wind. Chase the sunset.


->    TransAlp 650 - sold
:(    Yamaha XT1200Z - written off - R.I.P.
 

Offline OomD

Re: GSA LC 2015 - serious shaking
« Reply #6 on: August 16, 2016, 05:08:23 pm »
Interesting... I just had K60's fitted...

Previously had Karoo3 and also Pirelli Scorpio Trail, bike was smooth as butter with those...  even though the Scorpios seem way more aggressive than the K60's...
« Last Edit: August 16, 2016, 05:09:49 pm by OomD »
 

Offline sheldyn

  • Senior Member
  • ***
  • Bike: BMW R1200GS Adventure
    Location: USA
  • Posts: 1,066
  • Thanked: 1 times
  • dictum meum pactum
Re: GSA LC 2015 - serious shaking
« Reply #7 on: August 16, 2016, 05:11:50 pm »
My 1200 LC also shakes like crazy when under 20KM/h........... but only after fitting new more aggressive tyres. (Heidenau K60 )

I have exactly the same thing since putting on the K60's!  glad you mentioned it.  Price you pay for decent offroad capable tires.   :thumleft:
Regards,

Sheldyn
 

Online AntVan

  • Senior Member
  • ***
  • Bike: BMW R1200GS
    Location: Gauteng
  • Posts: 1,257
  • I am the Zipslayer! Hear me zzzzzzzzp!
Re: GSA LC 2015 - serious shaking
« Reply #8 on: August 16, 2016, 07:52:47 pm »
Huh! Interesting phenomenon
I don't always drop my bike, but when I do, I prefer to drop her in front of a crowd
 

Offline edgy

  • Bachelor Dog
  • *****
  • Bike: KTM 790 Adventure R
    Location: Eastern Cape
  • Posts: 12,519
  • Thanked: 81 times
    • A Stone's Throw Bed & Breakfast
Re: GSA LC 2015 - serious shaking
« Reply #9 on: August 16, 2016, 08:47:06 pm »
PM Dan......he knows exactly what's wrong! :lol8:
www.astonesthrow.co.za

 BEER..."I drink it when I`m happy or when I`m sad. I drink it when I`m alone. When I have company I consider it obligatory. Trifle with it if I`m not hungry and drink it when I am. Otherwise, I never touch it - unless I`m thirsty"
 

Offline Herklaas

  • Senior Member
  • ***
  • Bike: Triumph (all models)
    Location: Western Cape
  • Posts: 2,367
  • Thanked: 61 times
  • Do it, you only live twice.
Re: GSA LC 2015 - serious shaking
« Reply #10 on: August 16, 2016, 09:02:05 pm »
 :sip: I suppose he'd say, "But they are not suppose to wear those tyres, because they do not.........................
Yamaha 50, Yamaha 400, 2 x Yamaha DR 350 LC, Honda CBX 550 F2, Honda TransAlp 650, Triumph Tiger 800 Xc,
Now 2015 Triumph Tiger 800 Xcx.and.. my favorite... 1996 Yamaha Tenere 660 5 valve single.
 

Offline OomD

Re: GSA LC 2015 - serious shaking
« Reply #11 on: August 21, 2016, 05:22:20 pm »
OK so Bavarian's conclusion is that it is due to the "offroad tyres" I fitted (the K60ís), even though I previously had Karoo3 and Pirelli scorpio trials, which are much more aggresive. But then, they say it's not because of the thread pattern per se, but more because they are radial ply tyres, or something like that. Anyway, it is slightly better after they reset all the adaptations, but I suppose that could be in my head.

Anyway, I don't like the shaking so my next tyres will be back to Karoo3ís.
 

Online AntVan

  • Senior Member
  • ***
  • Bike: BMW R1200GS
    Location: Gauteng
  • Posts: 1,257
  • I am the Zipslayer! Hear me zzzzzzzzp!
Re: GSA LC 2015 - serious shaking
« Reply #12 on: August 22, 2016, 07:15:12 pm »
Still good feedback. I just got a puncture (again) in my new Anakees and with the rainy season imminent it is time for aggressive tyre. K3 it is then. Dankie Oom.
I don't always drop my bike, but when I do, I prefer to drop her in front of a crowd
 

Offline sheldyn

  • Senior Member
  • ***
  • Bike: BMW R1200GS Adventure
    Location: USA
  • Posts: 1,066
  • Thanked: 1 times
  • dictum meum pactum
Re: GSA LC 2015 - serious shaking
« Reply #13 on: August 23, 2016, 04:51:00 pm »
I'm curious, what tyre pressure are you guys running on the K60's?
Regards,

Sheldyn
 

Offline OomD

Re: GSA LC 2015 - serious shaking
« Reply #14 on: August 23, 2016, 09:18:06 pm »
I was running 2.5. On Bavarian recommendation I went up to 3, and it has reduced the shaking. Not eliminated it completely, but reduced it. I'm actually considering selling this tyre, and going back to Karoo3 or Pirelli. I don't like the shaking.
 

Offline sheldyn

  • Senior Member
  • ***
  • Bike: BMW R1200GS Adventure
    Location: USA
  • Posts: 1,066
  • Thanked: 1 times
  • dictum meum pactum
Re: GSA LC 2015 - serious shaking
« Reply #15 on: August 23, 2016, 09:27:55 pm »
Interesting...  Max front should be is 2.5 and rear 2.9 - that is per the Hidenau website.

I'm leaving mine on until after my 10 day trip in October but also looking forward to changing back.  Ive got an almost new set of Anakee 3's that I changed out for these.

Pitty, i had read so many good reviews prior to buying.
Regards,

Sheldyn
 

Offline OomD

Re: GSA LC 2015 - serious shaking
« Reply #16 on: September 21, 2016, 08:58:21 am »
Bavarian got stock yesterday of the Karoo3, so I went and had one fitted. The shaking with the Heidenau just irritated me too much.

What a difference, it's like I'm riding a new bike. Perfectly smooth, what a pleasure to ride.
 

Offline 0012

  • Double-oh-Tkwarf
  • Senior Member
  • ***
  • Bike: Suzuki DR650
    Location: Rest of Africa
  • Posts: 2,757
  • Thanked: 80 times
  • Race the rain. Ride the wind. Chase the sunset.
Re: GSA LC 2015 - serious shaking
« Reply #17 on: September 21, 2016, 09:33:48 am »
glad to hear it's sorted   ;D     :thumleft:


->    TransAlp 650 - sold
:(    Yamaha XT1200Z - written off - R.I.P.
 

Offline DavidMorrisXp

  • Senior Member
  • ***
  • Bike: Honda CRF-1000L Africa Twin
    Location: Western Cape
  • Posts: 4,180
  • Thanked: 107 times
Re: GSA LC 2015 - serious shaking
« Reply #18 on: September 21, 2016, 04:37:41 pm »
Try this method as explained by Charles of the BMW Club Cape to reset throttle bodies, it should smooth out the engine.  Maybe this also influences the shaking

Talking about resetting things: on the boxer motors you need to reset the throttle-body control after disconnecting the battery.  The symptom is very rough idling.  Here's how:

Turn on the ignition, but do not crank the engine.
Slowly turn the throttle from zero to full a few times.
Start the engine.
Done.
« Last Edit: September 21, 2016, 04:44:19 pm by meurig »
Check out my YouTube channel, please like & subscribe

https://www.youtube.com/channel/UCUyKBSrBu-N5oswrTlAhphQ