new strom cuts out/backfires/stalls on pull away

[Fat Rat]

Excellent post Tim, I hope Suzuki do the right thing.

I also hope that other owners support your case by admitting there is a problem rather than making Suzuki's defence much easier.

[alan29]

This doesn't seem to be such an issue in the USA, judging by the lack of mentions on Stromtroopers.
I wonder why.

I'm thinking the Euro emissions laws are stricter than the EPA regulations.

If that's the reason there is no excuse. The EU didn't spring the regs on Suzuki by surprise.

[wunwinglow]

Well, I have probably therefore shot myself in both feet, because the bike is more than 6 months old, and it has been remapped by a specialist, and not by Frasers, who cannot adjust the mapping any more, as their workshop kit is not able to interface with the current V Strom 1000 system. I don't know if this is deliberate on Suzukis part so the new V Strom can't be adjusted, or just an equipment issue, but I do know the emission regs are much tighter nowadays. I can't say what my emissions are now, but the fuel consumption is certainly as good as it ever was. And I also know that slipping the clutch while revving the engine in 1st, is a great deal less fuel-efficient than just driving clutch engaged at lower revs but in second. And it knackers the clutch....

Oh, and remember Geoff at Hilltop jumped off the bike on its first dyno run, because he was so surprised at how lean it was running, he thought the sensor had fallen out of the exhaust pipe. I suspect there were actually several things up with the bike, some part of the emissions-compliant set up, and others actual faults, and I've been dealing with a mixture of issues which is why it has been so tricky to track down.

I'll keep you posted with progress. And anyone thinking of getting one, don't let my experiences put you off at least a test ride. Otherwise, this is a great bike, honest!
 
Greywolf, Perhaps the regulations are different, but what would be really nice to know is if US bikes are set up in any different way to Euro ones.... Therein might lay the answers!!

Tim

[Oop North John]

It has happened over the other side of the Atlantic:

http://www.stromtrooper.com/dl1000a-201 ... shift.html

[oddbod]

So we are not alone then.

I too am of the opinion of wunwinglow. I don't really want to give back my Veek. Apart from this random cutting out the bike is perfect in every way, esp after the remap.

Interesting that across the pond (as per oop north johns post) someone has suggested taking a look at the side stand switch. Shall take a look in the morn and revert back

[greywolf]

If the side stand switch was a problem, the display would show a CHEC every time the engine cut out.

[bosnjo]

It was me suggesting to take a look at sidestand switch on the other forum.
My "almost stall" thing happens in average once a week. Sidestand switch was rulled out as I had it shortened for few weeks but "almost stall" happened anyway.
Mine actually stalled only once since I own it and luckily it happened while slowly crawling in straight line in Car park. The stall was provoked by myself blipping the throttle.
Now, there is something I discovered:
I learned, when it is about to stall, to quickly back off and back on the throttle and it will keep it from stalling completely. But, that is pure luck. I'm fortunate to have the problem only once a week. But, every time it is about to happen, I first hear not loud metallic "clack" from the engine and I know it wants to stall, so I have enough time to recover it.
Then, I found out that there is a way to replicate that "clack" from the engine and I did demonstrate it to a dealer. It's done with the bike warmed up, stationary, and by bliping the throttle. Dealer did say I was not supposed to blip the throttle on big V-Twin but I told him I was doing it to replicate the sound. And it did replicate.

Here is what I was doing:
- Bike running stationary on idle, engine fully warmed up
- Blip the throttle quickly and back off
- Let it calm down for at least 10 seconds
- Blip the throttle again
I had to do it 10 times and then that sound was audible, bike didn't stall completely, but almost did, it did recovered by itself. Next 10 blips it was OK and then we heard the "clack" again and it almost stalled. Then we tried the same test with sidestand on, sidestand off, neutral clutch closed, neutral clutch open, in gear holding the clutch... It didn't metter. In 20 minutes of testing, the symptoms were the same regardless of those other things. Sadly, it didn't stall completely so my dealer coud see it, but at least he could hear that sound and see the engine almost stall.
Just about the sound, I first thought it was metallic sound, then I was not sure if it was metallic or like air bubble releasing from somewhere. But the important thing is, the sound is there every time the engine was about to stall.
I have Arrow exhaust since day one. Maybe the bike doesn't stall completely thanks to exhaust but I'm not sure.
Maybe you other owners can perform the same test, let's see who has that wierd sound.

[Brockett]

As you all know by now I don't know anything and mostly write a load of B******s. However I was thinking while reading these posts that it was a blipping the throttle related problem. Recently reading some tosh about fuel saving car driving techniques which claimed it was more fuel efficient, when going down a long hill, to stay in top gear and not roll down in neutral. This is because in neutral the fuel is fed to supply tick-over revs. Whereas, when rolling in gear with foot off the accelerator peddle, the fuel supply is completely closed.

Do motorcycle ECU systems work like that?

If, and it's big 'if', the gizmo in the ecu that detects the car is in gear has an intermittent fault, then the ECU will close off the fuel supply when idling in neutral and the engine will stall.

However I refer you to my opening words......

The "Blue Slug" a.k.a. my Honda Jazz ticks over fine and it runs fine. However it has always exhibited a desire to stall as the accelerator peddle is pressed. I have got used to it now and it is regular every time I drive it so not related to this topic.

I spoke to my local dealer about the problems some owners are having and he said he'd never heard of it.

[oddbod]

Interesting you have changed the exhaust. I considered changing the exhaust also, to see whether this would help. wasn't sure which one to use and was also mindful of spending almost £500 on a poss solution that may or may not work.

[oddbod]

Out of interest I had previously narrowed my choice of exhaust to Arrow or Remus

[bosnjo]

Interesting you have changed the exhaust. I considered changing the exhaust also, to see whether this would help. wasn't sure which one to use and was also mindful of spending almost £500 on a poss solution that may or may not work.

This is the one I've got, from this very shop, much less money then you're thinking about.
https://www.motorraiz.com/silencioso-maxi-race-tech-arrow-aluminio-dark-fondo-carbono-ref71816akn-p-19424.html?osCsid=0euafl4freh24c666dbl8lqf87

Here it is installed on my bike, without db killer, so free flow is much better:

[UK_Vstrom650]

That looks MUCH better than the fugly stock one

[Oop North John]

Out of interest I had previously narrowed my choice of exhaust to Arrow or Remus

A cheaper option:

http://www.ebay.co.uk/itm/361040918558? ... EBIDX%3AIT

I'm trying to work out, apart from looks ie carbon / titanium & name, what a couple of hundred quid gets you  

[Fat Rat]

Speak to MTC Exhausts, they are a sponsor here and will look after you.

[oddbod]

Looks good bosnjo.
Thanks for the links chaps.
will also check out mtc as fat rat suggests.

[Blade]

No idea whether it's relevant or not, but I have had a MTC exhaust fitted from day 2 of owning the Veek and never had any of the problems discussed above.

[Oop North John]

If putting a different exhaust on solves it, that would be a relatively cheap and easy solution. And another reason for me to buy one.

[alan29]

Massive "if" there.

[Frankenstrom]

You're right there, but I guess you don't mean if there is a serious problem with new 1000 or if it's just a handful of poor bastards affected.

With all the noise on here it's getting pretty difficult to actually tell.

[oddbod]

Unfortunately I am one of the poor bastards that has been affected by this issue.

Heres my take on it.

Having ridden for over 30 years I know when a bike is running too lean in low revs. In the old days of riding tuned two strokes with carburettors I had this very same issue but worse. Then of course it was a simple fix of putting a larger pilot jet in the carb and this solved the problem. However, on a modern bike such as this its not quite as easy to do this.

My bike has a tendancy to cut out when rolling of the throttle in low gears and even randomly cuts out when stationary from time to time. However, it is not an everyday occurrence.  Because it is random it is hard to replicate the issue. I have tried tightening the slack in the throttle cable, which made it worse, I have tried adapting riding style to pull the clutch in earlier and keep the revs up, which helps but is not ideal. I considered a new exhaust to allow better flowing of exhaust gases as it coukd be a back pressure issue. But to be honest due the randomness I don't think the exhaust will solve it, perhaps it may help it a little.
Could it be a faulty/sticky TPS, could it be this, could it be that?
With my dealer unable to replicate the issue and giving my bike a clean bill of health its hard to think what next to do.
Perhaps a new exhaust may help, who knows?
Perhaps purchasing a new TPS may help.