The rpm is too low. Give it some gas and it runs smooth above 4,000.
Then.. this happens to you?? is normal??The rpm is too low. Give it some gas and it runs smooth above 4,000.
mine seems smooth at low rpmThen.. this happens to you?? is normal??
This video is very interesting. Thanks for sharing it!My '22 650 does the same thing under 2.5-3k RPMs. Between the 1st and 2nd cylinders firing there is a 270 crank degree seperation, and then from the 2nd to 1st cylinder there is a 450 degree seperation. This equates to a rough and noticeable vibration below ~3k RPMs.
Here's a good audiovisual demonstration of a 90 degree V-twin firing order
Quoting myself...Yes, check the cables but as stated, 20 kph (12 mph) is pretty low and in the "fanning the clutch" area. I ride through our company parking lot everyday. 5 mph speed limit. I can't do that. So, I fan, or go a bit faster. These bikes are super happy at
3500/4500rpm. (edit 7/26/22. RPM and happy bike really depends on gear)
From what you say, maybe it is the TPS configuration. If it works fine for you, I understand that it's a matter of making some adjustments. Anyway, it seems that it is nothing serious, I will wait for my next visit to the dealer.Quoting myself...
Got to work this AM and did the "parking lot crawl". I intentionally tried to keep it at 20 kph (12 mph) in first gear, not feathering of the clutch.
I was able to drive 19-20 kph (10-12 mph) in first gear, no clutching, and it was smooth.. not 4500 rpm butter smooth but not jerky, I guess I was around 2250 rpm at the time. Felt slow.
The throttle was all but closed. Opened maybe 2mm (.080") and I have a well adjusted cable. Hope this helps.
I have noticed the same w/ my '15.Hello friends.
The truth is that I don't know if the bike did it before, and I didn't realize it, or if it does it now and I feel a little strange.
My beloved Vstrom has only 5600 miles on it, and when I go in first gear, for example, at 20 km/h, I notice some slight jerks. They are small, but very noticeable.
When I go up to 3000 RPM everything is smooth. I have no idea if it comes from before or is new, I do not know if it is common to this bike or I have to check something.
The chain is very well, in its correct margins, although the air filter has never been changed.
What do you think? Thanks in advance.
I have noticed the same w/ my '15.
They are calibrated Very lean at low speeds in order to pass emissions tests.
#1 I'd check is the chain slack. I recomend between 3/4" to 1" slack, however DO NOT less than 3/4" slack or it will be Way too tight when the suspension compresses.
It could get Really expensive if you get it too tight.(countershaft bearing failure as a result on my 1978 GS 1000e w/ the full Yosh motor upgrades) You might be splitting the cases for the repair. You do not want to do that!
By habit I have compensated by (in a 'mellow' mode) keeping it slightly over 3,000 rpm, shifting at 5k or so mostly when commuting in traffic.
More than that when on the Innerstate roads.
A non paper eliment air filter will agravate it as will a freer flowing exaust untill you get it (the ECU) re calibrated.
You are new to the bike so some "setteling in" time is in order I think.
Ultimately you have purched one of a VERY few select bikes that can take you anywear, on any surface and hold up with only minimal maintence And will run well on regular fuel.
I hope this reply helps you!