Best way to get rid of stutter/fart/burp at 3-4K rpm?

[rmx250]

I finally have about 1000 miles on my 04 1K. I love the bike but would like to get rid of the stutter that happens at low rpm. It's really annoying when having to creap along in a parking lot and the bike starts bucking like mad. Only really seems to happen after the bike is run for a while. Can the dealer change the mixture or do I have to go aftermarket?

On the road I keep it above 4K so its not an issue. It could almost be considered a hazard at low speed not to mention emberassing. I had a 2000 sv that was smooth as silk throughout the powerband.

Larry

[DesertDave]

Mine, like most, have/had the same issue. Here's why. The EPA tests emissions on bikes at around the 2500-3000 RPM range. Therefore, bike manufacturers make their bikes run lean at this range to meet "standards." To correct this have your mechanic richen up the midrange; takes all of 3 minutes to do if he has the little "black box" to hook up and remap. Problem solved. :wink:

[sempervee]

One of two things... Install a Power Commander to richen the mixture and/or have your throttle bodies checked

[PureEgo]

hmm,,that sounds pretty annoying, is that for both of the DL's or just one of them ? *IE the 650 or the 1000 ?*

[Pauljo]

I've never had that issue with my '03 DL1000.

[GT500]

Because I was at the dealer looking over the Givi bags that I'm having installed...a top box and side cases in g730 metallic silver (very, very close to the '04 Suzuki silver colour).

Another '04 Strom owner was there, because his bike had been backfiring in this rpm range. Mine stutters every once in a while as well, but his is much worse. I told the dealer about this thread, and the proposed solution, and he's going to try this with mine when I bring it in next Monday for its 1000km servicing. :wink:

Thanks for the tip, and I'll let you know what happens...

[Pauljo]

I just visited the Power Commander website. They do show a map for the DL1000 and they are working on one for the DL650.

[GT500]

Picked up my bike after its 1000 km servicing, and the mechanic did as recommended and richened the mixture. He admitted that this was the firs time that he's done this...it seemed smoother on my way home, although I didn't take it too far today. :lol: The wind was howling, rain was coming down, and I even saw some white stuff mixed in (and this is late April?).

I'll keep you posted.

[GT500]

over 200 km farther and the problem seems to be gone. The engine's still running smoothly in the 3-4k range. It's idling a little too low now (just over 900 rpm) so I'll have to adjust that. All in all, I'm quite happy with the results. Thanks to DesertDave and SemperVee for the tips!

[sempervee]

Your most Welcome GT, Glad I could help....

[grnddad]

Was at the dealer today because of that stutter. He told me at a suzuki the control box is sealed. Warranty void when opened. And nevertheless it was not possible for them to change the mapping. Only thing he could do was to enrichen the mixture a little bit by some adjusting screws. Its only a problem in traffic but quite annoying. Whats the method to change mapping?

[Pauljo]

There are a couple of adjustments your dealer should know how to check. One is throttle body sync - and it is important that it be right. I forget what the other is right now. But if your dealer called Suzuki for help
with the issue instead of BS'ing you - I believe they would have him do a throttle body sync as the first step.

To change the FI map, you need to go with something like the Power Commander. Yoshimura makes a device also. They are pricey. You really shouldn't need to do that on a stock machine. If you had added a performance exhaust and were looking for even more power - then a Power Commander device is an answer.

I have added Remus performance exhaust cannisters to both my Suzukis and they both run fine without remapping. Although I could tweak some more power with a remapping device, it isn't worth the expense to me.

[grnddad]

So let's start with the sync and see wat happens. Power commander etc. is no option for me. BTW the first few 1000 kmh's I did'nt notice the stutter Will anyway be at the dealer in a couple of weeks when the new BT020 for the front is deliverably. Seems we have to wait for them in Europe. When I go for a ride with my Son on his Tuono there is also no problem on low revs. Need all the power there is. But sometimes there is a lot of traffic and you have to idle along :(

[kawidan]

i had that annoying stumble and it got worse as the bike broke in.horrible when rolling at low speeds while not accelerating between 2400-3000 rpm.if i accelerated through it,no problem.only when keeping a constant rpm in that range was it bad,no,horrible and unsafe is more like it.there was another smaller hiccup when holding at a constant 3500 rpm but not as bad.tried the remapping 5-7 different times and decided the stumble goes or the bike goes,i can't ride something that wants to buck me off when lanesplitting in traffic.adjusting it just wasn't getting it done.i changed air cleaner to let it breathe,i changed the exhaust to open it up,remapping each time a change was made and several times in between.5,000 miles of misery in 7 weeks and i was ready to dump the bike.the dealer suggested the power commander pre-mapped to my exhaust and air cleaner direct from dynojet.bingo.it runs!way smoother,accelerates harder,no more stumble,and my gas mileage went up too.only a few tanks through it since the change but what a difference.i was trying to figure out how much i was going to lose getting rid of a turd or should i pitch it under a truck,somebody just saved this bikes life. :D

[tx2whlr]

My 04 DL1000 has had the same driveability issues since new(1500 miles now)from everything I've read it looks like a pc111 is the way to fix it.I guess I'll have to spring for one as this one problem is a big thorn in an otherwise great bike,it just doesn't seem right to have to spend $300 to fix a brand new bike.

[rifraff]

My 04 DL1000 has had the same driveability issues since new(1500 miles now)from everything I've read it looks like a pc111 is the way to fix it.I guess I'll have to spring for one as this one problem is a big thorn in an otherwise great bike,it just doesn't seem right to have to spend $300 to fix a brand new bike.

Obviously you have never owned a Harley. 8)
Buying the bike is just the first expense.

I have had a PC on order for more than 3 weeks now. Vendor told me they are backordered but should ship this week.

[tx2whlr]

Well you're right I've never owned a Harley,but this is the 21st bike I've owned(8 different brands) and it is the only one that I ever had this kind of problem with on a completely stock unmolested bike.

[rhinoWERX]

but this is the 21st bike I've owned
And of those, how many had FI?

This bike surges way less than both my previously owned BMW's (R1100RT, R1100R)

IMHO, it's also very easy to stay out of the 3-4k range

Cheers

-Jack

[kawidan]

when out riding the backroads and highways the bike rarely sees the 2500-4000 rpm range.however,i use the bike daily to commute to and from work into the city and lane-splitting as well as city traffic has me moving a little slower and dodging idiots at a more cautious pace.i do prefer a vehicle of any kind that will run well throughout the rpm range.if i want to ride something that doesn't run below 5000 rpm i'll break out the rs250 for a track day.the distributor was back-ordered on the power commander as you mentioned,that's why the dealer got it direct from dynojet.they are also not available pre-programmed for exhaust etc. when getting them from other sources or so i'm told.how can anyone bring up a harley in a thread discussing modern technology?

[rifraff]

I was referring to the fact that buying a new HD is just the first step. Then you have buy accessories to make it run like it should have from the factory.

Although, that is one way to elimate low speed lean surge. Add a big ass heavy flywheel like a Harley. :)

Seriously though, the leaness is mandated by the EPA (or equivilent) for emissions and the testing occurs at low engine speeds. I think the touchiness (responsiveness?) of the FI at low speeds makes it more noticable.

[tx2whlr]

and of those,how many had FI. Four had FI and they all ran great(no hesitation, surging or any other driveability issues),in fact until this bike I swore I'd never own one without FI.BMW and harley may have some problems getting their FI bikes to perform smoothly but the asian manufacturers generally have it down pat.My last two FI bikes(gsxr600 and roadstar warrior 1700)very different bikes,both performed flawlessly as delivered.

[ou812]

I have installed the Power commander 111 and found that there is not much improvement over stock. Not $300.00 worth of improvement. As a matter of fact, I just unplugged it and am running stock right now.
Mine was sent with the stock mapping sice my bike is stock.
Anyone else had the same results or have any suggestions?
I have considered playing with the PC 111 mapping but not sure it would help.

[rhinoWERX]

I also recently installed a PCIIIUSB and while any originals signs of surge/hunting were not that severe (IMO), with the PCIII, it is almost all but gone - the only time I notice it now is if I lug the bike (end of a hard days riding - I become tired and lazy :roll: ).

I think it's more common to experience some sort of surge related issues on big twins with FI.

Another point to remember: the ECU on the 04's changed from previous models and as I understand it, at this point in time, there is no specific 04 map available -- which, in my mind at least, means that things can only get better :wink:

I primarily bought my PCIII in anticipation of remapping the ECU to accommodate nice set aftermarket pipes :)

Cheers

-Jack

[crash2much]

Hey there! New to the site and love it. That 3k - 4k stuttering really got me when I picked up the bike (in traffic and tried moving at 3k and the bike took on a new life!- closest thing to an earthquake yet). After 2,000 miles it has been a lot less frequent. My dealer (Freedom Cycle- great place) had the bike almost 2 months (I crashed on spring sand and nearly totalled), they did the service and I believe they adjusted for it. I rarely notice it now. I've never had a bike of this sort before and have found I rarely ride below 4k now. Not an excuse for the problem, but just an observation. Aside from the terrible windscreen, the bike fits all my needs!

[chuckwagon]

I just bought an 04 DL1000 last week. It turned 500 miles today, but has the same problem and seems to be getting worse. Can the dealer richen the map in just a certain RPM range, and is it something any dealer should be able to do ? I have drilled the exhaust for a better sound, but do not plan on any other engine mods. I don't really want to spend the bucks for a power commander for a stock bike.
Chuck

[Pauljo]

The basic FI adjustments that the dealer can perform are throttle body sync and TPS (which I think stands for throttle position sensor). I'd start there. A remap probably isn't necessary if those adjustments are properly done. Feedback I've read previously indicates that a Power Commander doesn't help too much unless you've made modifications to more than the exhaust - and it is a $300 component.

[Paul D]

Hey all, I don't know the relationship between the various Vstrom lists, but check this out:
http://11109.rapidforum.com/topic=101080745851

My experience is that the throttle cable adjustment helps a lot but tends to slip out of adjustment quickly. You have to retighten it every few days, at least I do on a nearly new bike.

[chuckwagon]

I just did the throttle cable adjustment on my 04 and it CURED the burp/miss I was experiencing in the 2500/3500 rpm range. I couldn't believe it at first but rode about 50 miles Sun, in and out of town with NO MORE MISS. I had done the TBS previously,(bike is just 2 weeks old), so no problems there. So now with barely 600 miles showing, I have had the first great ride on the bike. It will now pull smoothly down to 45 in 6th gear. I know it's lugging, but it will do it. Before with about 1/4 inch of throttle play, 6th gear would stumble below 65mph, and you could forget about driving in town, it was to embarassing in any gear unless the rpm was above 3500.
Chuckwagon

[Paul D]

Glad it helped! Send a progress report in a few weeks, I'm interested in how this is working for everyone.

[Bob]

All I can tell you is that I've never suffered this problem with my 02 DL1000, except one time when it just suddenly stalled at very low revs for no apparent reason, but that is only one time in the 9000 km I've owned this bike. However, the throttle cables have always been set correctly. I checked them when I got the bike and twice since and have never had to adjust them. So maybe the correct cable settings have helped to ensure that my bike ran properly.

Bob

[Convert]

I told my dealer about the issue with the low RPM issue. They said they "synchronized the fuel injectors" to correct the problem. I can't tell you what that really means beyond my understanding of english, but I can tell you that the problem has gone away. The 2500-4000 range is comfortable and very usable.

Hope this helps.

[Pauljo]

They probably did a throttle body sync.

[jambo1965]

I had this hicccup too since I bought it. Wasn't as bad as some others I've read about. Brought to the dealer and they tried adjusting thottle cables first, at my suggestion from reading another post. Got a little better but dealer told me they got a request into Suzuki to see what they say. They called me back a few days later and told me to bring it right in. Took about an hour. :o They said they had to richin it up and remap. They also took out their floor model which also had a hiccup like mine. The results are great I drove home in OD for 1 hour on backroads letting it go down below 2k rpm. I don't normally drive like that but I wanted to make sure problem was gone. No problem. Its like a totally different bike. :D