(03-28-2017, 11:08 PM)Sandhog_imp Wrote: I too am having problems with my bike which is a 2013 ABS model, the low-idle problem occurs whenever I'm riding for 15-20 minutes in heavy stop and go traffic. I've called Honda twice now on the issue and they don't appear aware of the problem. I had one dealer in New Jersey check the bike and they couldn't replicate the issue or find anything wrong, a second dealer I spoke with was not aware of any engine idle issues, a third dealer is looking at the bike now, I hope to hear back from them later this week and will post a follow up. Thanks.

(03-29-2017, 01:01 AM)Ben70_imp Wrote: From my experience in the automotive world, it was (and is), common for some multi-port fuel injected vehicles to be plagued with a carbon sludge deposit that forms around the throttle plate. This would cause uneven or low idle, sometimes dying, and a hesitation on acceleration in some cases.
I am pretty sure that this would usually only happen with an average higher mileage than most of us have on our bikes.
The fix was to open the throttle and clean around the bore where the throttle closes, and the back (inner) side of the throttle plate. The most sparkly clean results come from pulling the throttle body for thorough cleaning, but i had good luck with a toothbrush and some Berryman's Chemtool.
If I were plagued with this issue, I would try to access the throttle bores so I could assess the possible accumulation by opening the throttle and wiping a q-tip around the area where the throttle plate closes, if it comes out clean, that's not the problem.

Ben

(03-29-2017, 10:15 AM)Dave_imp Wrote:

(03-29-2017, 01:01 AM)Ben70_imp Wrote: From my experience in the automotive world, it was (and is), common for some multi-port fuel injected vehicles to be plagued with a carbon sludge deposit that forms around the throttle plate. This would cause uneven or low idle, sometimes dying, and a hesitation on acceleration in some cases.
I am pretty sure that this would usually only happen with an average higher mileage than most of us have on our bikes.
The fix was to open the throttle and clean around the bore where the throttle closes, and the back (inner) side of the throttle plate. The most sparkly clean results come from pulling the throttle body for thorough cleaning, but i had good luck with a toothbrush and some Berryman's Chemtool.
If I were plagued with this issue, I would try to access the throttle bores so I could assess the possible accumulation by opening the throttle and wiping a q-tip around the area where the throttle plate closes, if it comes out clean, that's not the problem.

Ben

Ben70 may be on to something here. 2 1/2 weeks ago while riding some open, desert (Anza Borrego) roads I opened the throttle WFO several times while doing passes on slow moving traffic (most of it Harleys). Had the wife on the back (she only weighs 125 lbs) and the trunk had some gear in it, so it was WFO for several seconds. Ever since this day I have not experienced the low RPM idle stalling or the high (1,500) RPM idle. Now I admit, I baby this bike, and it's been longer than I remember to when I had this bike wide open. My passes were done in 4th gear, and I held it wide open from about 2,500 RPM until I reached 6,000 RPM, then I shifted into 5th gear and held if wide open some more. Now I have only had my bike out three times running short errands since this ride, so I can't say that the problem has gone away for good because it comes and goes as it pleases. But maybe when holding it WFO I cleaned some gunk out of the inlets? What do you guys think? Can somebody else experiencing this problem either try the WFO trick, or follow Ben70's suggestion and report back? I think with the engine running it makes a difference. I am riding my bike tonite, and I will keep this post updated.

(03-28-2017, 11:55 PM)Lord Popgun_imp Wrote: Sandhog, they know. Read Dave's post above: http://cb1100forum.com/forum/showthread.php?tid=8120&pid=166901#pid166901

Good luck with the 3rd dealer, but I wouldn't expect much. Unless its a hard failure, we seem to be on our own in the US. Mine is OK, but I have been following this since it was first reported here and would like to see a resolution.

(03-29-2017, 02:14 AM)The ferret_imp Wrote:

(03-28-2017, 11:08 PM)Sandhog_imp Wrote: I too am having problems with my bike which is a 2013 ABS model, the low-idle problem occurs whenever I'm riding for 15-20 minutes in heavy stop and go traffic. I've called Honda twice now on the issue and they don't appear aware of the problem. I had one dealer in New Jersey check the bike and they couldn't replicate the issue or find anything wrong, a second dealer I spoke with was not aware of any engine idle issues, a third dealer is looking at the bike now, I hope to hear back from them later this week and will post a follow up. Thanks.

Sandhog, print off this thread and take it to the dealer that has your bike now.

(03-29-2017, 02:00 AM)Hatred66_imp Wrote:

(03-28-2017, 03:18 PM)Riko_imp Wrote: When you are at @500 rpm, if blip the throttle, does it actually die??

Hey Riko,

Mine has never died while I'm stopped, although sometimes I literally felt like the engine was off due to total lack of sound/vibration. Usually after some seconds in that 500 RPM quiet idling, the bike goes back to 1000 RPM where it behaves "normal". The problem is that sometimes the light goes green and you don't have that extra time. In those cases the bike doesn't take off as easily since I have to apply extra throttle to compensate the low idling. If I don't do so the bike will die (again, due to starting on 1st gear with lower RPM than normal). Annoying and weird!
With the high idling, there is no variation. If the ride starts at 1500 RPM and never goes down to 1000 RPM, it will stay like that the entire ride, regardless of full stops, highway, temperature, etc.

All this is what makes the bike unpredictable...

(03-30-2017, 02:34 AM)736cc_imp Wrote: Running it hard WFO (wide full open) as a tuning aid is also known as "blowing out the carbon" or an "Italian tune-up"

A build-up of deposits on sensitive sensors in the throttle body in fuel injected motors is very possible from lousy fuel AND wrong octane; the CB1100 is designed to run on 87 octane, using higher octane introduces additives that cannot be burned off. This I've read on the internet but it makes sense.

Who is having the idle issue and ALSO running premium fuel AND not revving the snot out of it occasionally? And is Techron or Star-tron additives a possible fix?