vibration

[euler]

experiencing high frequency vibration between 5-6 k rpm on motorways,up to now has been fine.Suspect throttle cables may have stretched,is it worth trying to adjust by hand or do you need flow meters?thanks.

[MartinW]

Is it worth going to INTRODUCTIONS and saying hello?

[UK_Vstrom650]

If you have Suzuki OEM crash bars it'll be them. You can put some rubber at all the connection points to help reduce it.

[Rusty Nuts]

What, if anything, have you added, removed or altered recently? Wouldn't think a stretched cable could do that. ( Or that you need a meter to simply adjust cables to remove slack. )
"Up to now"? How long have you had the bike before it started?

[plumber02]

was it a BMW 1000xr they sold you

[BlackRockFox]

I had the original OEM Accessory Bars which vibrated badly between 4-5k (not 5-6k)
Got my money back from Suzuki (known and accepted problem)
Now have the Mk2 version which are much better

There are lots of older posts about this subject, try [Search]

[Mark Shelley]

Wouldn't think a stretched cable could do that. ( Or that you need a meter to simply adjust cables to remove slack. )

He suspects the throttle bodies are slightly out of synch which can indeed cause vibration. You need a vacuum gauge to adjust it.

[greywolf]

Throttle cables cannot put the throttle bodies out of sync. The synch mechanism is done by linkage rods. One throttle cable opens the entire linked mechanism and the other pulls it closed if the return spring breaks or the linkage jams. It is not like a throttle that runs two pull cables to separate carbs. The throttle cables on a Strom cannot have any effect on vibration.

[euler]

thank you everyone.

[Mark Shelley]

Throttle cables cannot put the throttle bodies out of sync. The synch mechanism is done by linkage rods. One throttle cable opens the entire linked mechanism and the other pulls it closed if the return spring breaks or the linkage jams. It is not like a throttle that runs two pull cables to separate carbs. The throttle cables on a Strom cannot have any effect on vibration.

I stand corrected, I wasn't aware they had a linkage. Having said that, presumably there must be adjustment on the linkage mechanism to enable the TBs to be synchronised?

[Valves]

I stand corrected, I wasn't aware they had a linkage. Having said that, presumably there must be adjustment on the linkage mechanism to enable the TBs to be synchronised?

There should be but not on the new AL4 model 

[greywolf]

The linkage on the Veek and Post K7 650s is set at the factory for emission control purposes. The only adjustment for synch involves the idle air screws so synch above idle speeds shouldn't be a problem. Most of the vibration complaints involve added tubing for engine guards that act like organ pipes in amplifying some harmonics. Changing the harmonics by isolating the two sides where they meet with rubber padding is the usual fix.

[kwackboy]

Anyone thought that the wheel balancing weights might have just fallen off ..

[buzzkirk007]

I recently had a new chain and sprocket fitted and experienced the same sort of vibration as you. After 1000 miles or so and an adjustment and lube it has now gone. Maybe worth checking chain.

[Rusty Nuts]

If it's linked to specific revs I would tend to discount anything post-transmission and suspect normal engine vibes amplified by add-ons such as engine bars, or loosening of fixings somewhere.
Did you alter anything just before you noticed the change?

[euler]

at 9k miles tyres changed to BT 023's which I like,blew out the air filter and that is all.checked the few screws holding everything together,had the bike from new and was pleased with the lack of vibration until the last thousand miles or so.more noticeable on the motorway at relative constant speed of course,just spoiling the experience not a deal breaker.

[kwackboy]

As suggested do you have engine bars ? If not it could be something as simple as balance weights on one of your wheels may have fallen off.
When you had your tyres fitted they should have been balanced and sometimes new weights don't hold on to long. 

[doboy]

I had the same problem on my Super Tenere, vibration appeared from nowhere , tried everything and found in the end it was throttle bodies out of sync ..I would always try them first ..

[Rich:-)]

I thought that from 2007 onwards TBS only affected the engine at idle, once running the TB's are managed by the FI?

[Rusty Nuts]

 ...as previously said by GW.