Vibration

[bgregor]

Had my 600 service today, actually 820. On the way home I had a lot of vibration running through my hands from 4K upwards. It was like holding onto a vibrating compactor.

Spoke to the service dept and they said they haven't heard of this before. They are going to pick the bike up tomorrow and take it back and try and fix it. They said they will use the electronic balancer.

Will this fix it or should they do something else

 

[Joyseeker]

i'm new to GSing

had my 600 last month. during 'run in' i felt loads of vibs at 4000rpm. i thought berlin had desined it that way to encourage riders to comply to the run in limit. mentioned it to vines of guildford who said berlin did no such thing.

when i got the bike back they said they had changed the software. another customer (who had taken delivery just before i) had complained and on checking wrong software had been installed on our bikes.

i was promised the problem would be resolved. well for the next 1000mls it always felt like a 'flat spot' through 4000rpm still but less.

now at 3000mls it is much smoother but then i must say i'm new to the boxer and still learning.

the bike does get asked for 'ducati' style revs now and it devilers it without fuss and much smoother but i do have to twist more for them

 

[BAKERMAN]

Best avatar yet

 

[Chrysostom]

A flat twin, or a 90 degree V-twin when run in the proper firing sequence, has perfect primary balance. Secondary balance is more elusive, and the more so as cylinder capacity rises. With the R1200GS, BMW have recognised this by adding a balancing shaft, but they are pushing the envelope of two-cylinder engine design. In car (spit!) engines, 500cc's a cylinder is considered the maximum appropriate.

I really enjoy my R1200RS, but I do understand that for much more power (were it needed) I need to go to more than 2 cylinders.

Chrysostom

 

[bgregor]

Best avatar yet

Glad you like it

 

[Wraithwrider]

Hate to say it but my 12 is soooooo smooooooth prior to its 600 mile service that I'm well chuffed.

 

[Panzer Patrol]

Avatar:

Surely you dont mow the lawn dressed like that What must the neighbours think and why do they call you Shirley

 

[bgregor]

Avatar:

Surely you dont mow the lawn dressed like that What must the neighbours think and why do they call you Shirley

She is the neighbour. How lucky am I

 

[Paul Wakefield]

A number of thoughts:

The latest software upgrade has eliminated the flat spot but does seem to have increased vibes (I've noticed it and, according to my dealer, a number of others have commented).

If this is the first time you are venturing above 4k rpm, there are more vibrations up there especially whenthe engine is young. They do reduce significantly after a while.

The throttle bodies may need balancing. The BM equipment is not sensitive enough to do this accurately.

Paul

 

[clerici]

Generally OK and vibration is minimal - and zero at 90!

Two up with luggage - vibration at 4250 revs - soon be time for the 6K service so we'll see if that changes things.

 

[laughingBob]

Had my 600 service a couple of weeks ago having stayed below the recommended 4k rpm limit up until then. Since then I've slowly increased the rpm up to 7k rpm, reached at around 1k miles. The engine felt very rough/vibey at anything over 5k for the first few hundred miles. The bike has now covered 1700 miles and feels alot smoother even at tickover, which was very rough. Oil consumption has dropped to almost nil. Might just be that you need to do a few more miles.