CB1100 Idle speed instability problem

[Riko_imp]

I saw your video yesterday. Very helpful. People can now visually understand what is the exact problem.

I see that you had whole throttle body replaced back in 2016.
Is the bike idle problem free since then?

I also sold the bike 13months ago.
But since the new body I didnt have a single issue.
Nor did I hear the new owner complain (lives a few blocks away from me).

Long story short: lots of speculation about cause and cure, but nobody knows for sure.

[GoldOxide_imp]

I dont know how many times I posted my video here, but its weird to read someone say the post 2014 models havent had these issues

That behaviour is pretty clear. Good capture.

Never seen it on a 2014 model. But five years in so far, who knows what is to come.

[pdedse]

I dont know how many times I posted my video here, but its weird to read someone say the post 2014 models havent had these issues

That behaviour is pretty clear. Good capture.

Never seen it on a 2014 model. But five years in so far, who knows what is to come.

...
Never seen it on a 2014 model. But five years in so far, who knows what is to come.
Riko...to be clear, isn't your bike a 2014ex? The Ferrett stated post 2014 models--not be be insulting, but that would be 2015, 16 (which the U.S. didn't receive, but other countries: yes?) and 2017ex (which U.S. did receive) and of course newer models.

If you look at the [url=https://docs.google.com/spreadsheets/d/1qd6ncVq510VJrFiv7-MGQ5FHNMdHeLxpyQO14I7-UpE/edit#gid=0]CurlyJoe spreadsheet, which [url=http://cb1100forum.com/forum/showthread.php?tid=11247]Cormanus links here, one can see that all the bikes are either 2013 or 2014 (dlx, ex and std) models. Riko, I assume the info there is correct and your CB1100 was, in fact, a 2014 model--which would make Ferrett's statement (no reports of affected post-2014 models)...true.

I haven't checked other cb1100 forums in Asia or Europe to see if any 2015-2019 models have the high idle issue. But again, we see no reports on this forum of that being the case.

I did a quick check from the spreadsheet:

2013: 8 bikes affected
2014 standard: 13 bikes
2014 deluxe: 5 bikes
2014ex (europe only?): 5 bikes
1 bike of unknown year

These numbers don't mean much by themselves because we don't know how many bikes of each flavor were sold. The only thing we know is that there are 2013 and 2014 models that have been affected.

So, if anyone knows of a 2015-16 (outside of U.S.) or a 2017-19 model with a high/low idle issue, then that would be interesting to know.

Having had the idle issue on my 2014 standard, then having traded it in and eventually buying a 2017ex...well, if my '17 develops the same I would think it would be time for me to move on from this otherwise beautiful bike--wait, nearly forgot--I have a 5 year warranty on the '17, so I'm good for awhile regardless.

Until then, fingers crossed that no post-2014 cb1100s will develop the high/low idle issue.

[Riko_imp]

tbh, dunnno what the build year was, since its been sold 13 months ago.

I got it in December of 2015.
So either its a 2015 or a 2014 bike

Being European and as you can see by the spoke wheels, its an EX.
It has the new digital dash with 6 gears.
And the tank that came after the teardrop tank and before the current model offered.

So yeah, definately a 2014-2017 model.
Asian facebook pages are flooded with the idle issues of the EX and as I remember, many of the 100 pages that this topic holds, are compromised by 2014 and up models.

So, big was my surprise to read a active member state that he doesnt remember if 2014 and post 2014 models have the issue.
If anything, I'd say it are mostly 2014 and up models that suffer from this issue.


Than again, this is a US board and maybe non US members aren't as active here, or the number of EU members is small compared to non US members.
But when I brought in my bike, the Honda dealer knew about the issue and it was he who sugested to swap throttle bodies, since this "fixed" the problem in a similar case in The Netherlands.
So I'd assume, the problem is bigger than what is perceived on this US board.

[pdedse]

tbh, dunnno what the build year was, since its been sold 13 months ago.

I got it in December of 2015.
So either its a 2015 or a 2014 bike

Being European and as you can see by the spoke wheels, its an EX.
It has the new digital dash with 6 gears.
And the tank that came after the teardrop tank and before the current model offered.

So yeah, definately a 2014-2017 model.
Asian facebook pages are flooded with the idle issues of the EX and as I remember, many of the 100 pages that this topic holds, are compromised by 2014 and up models.

So, big was my surprise to read a active member state that he doesnt remember if 2014 and post 2014 models have the issue.
If anything, I'd say it are mostly 2014 and up models that suffer from this issue.


Than again, this is a US board and maybe non US members aren't as active here, or the number of EU members is small compared to non US members.
But when I brought in my bike, the Honda dealer knew about the issue and it was he who sugested to swap throttle bodies, since this "fixed" the problem in a similar case in The Netherlands.
So I'd assume, the problem is bigger than what is perceived on this US board.

I don't know if "ex" for Asia means a particular year or not, but:

tbh, dunnno what the build year was, since its been sold 13 months ago.

I got it in December of 2015.
So either its a 2015 or a 2014 bike

Being European and as you can see by the spoke wheels, its an EX.
It has the new digital dash with 6 gears.
And the tank that came after the teardrop tank and before the current model offered.

So yeah, definately a 2014-2017 model.
Asian facebook pages are flooded with the idle issues of the EX and as I remember, many of the 100 pages that this topic holds, are compromised by 2014 and up models.

So, big was my surprise to read a active member state that he doesnt remember if 2014 and post 2014 models have the issue.
If anything, I'd say it are mostly 2014 and up models that suffer from this issue.


Than again, this is a US board and maybe non US members aren't as active here, or the number of EU members is small compared to non US members.
But when I brought in my bike, the Honda dealer knew about the issue and it was he who sugested to swap throttle bodies, since this "fixed" the problem in a similar case in The Netherlands.
So I'd assume, the problem is bigger than what is perceived on this US board.

2013 and 2014 models yes...but "and up"?...I'm not trying to be difficult, but I just don't think that's true--at least not for this thread. I know I have read every post on this thread, but my memory may not be correct. However, I did a spot check of about 25 pages between p30 through p100. I didn't see any mention of a 2015-16 (Europe or Asia only) or a 2017 (U.S. included) model. The spreadsheet I linked before shows only 2013 and 2014s, no "and up" models.

Not trying to win an argument or be overly picky, but I think it's important to clearly establish if the high/low idle issue has been a problem for 2017 (U.S.) models, because at one time (going on memory here) I believe someone mentioned that there was a part number difference between the throttle body (or maybe it was the IACV) for U.S. 2014 and a U.S. 2017 models, which would lead one to think that a "fix" had been found, and the new models were free from the issue.

I can't speak to Asia and Europe, but if there are any U.S. '17s with this issue, please chime in. If I'm mistaken--should there be any 2017ex models with the issue--I would like to know for future considerations should the problem occur on my '17ex.

[Riko_imp]

2017 and up seem to be fine

[Fabrimtb_imp]

Mine is 2013 model, I have experienced a problem with low idle. No error code from ECM memory, so speaking with Honda mechanic, I discovered that is a problem that occurs also with the new Honda Africa Twin and also with GS 1200 bmw, if when you are gearing down (shifting to lower gears - sorry for my english), give an hit of gas. The ECM can read a wrong message related too much gasoline inside cilynders or unburned gas, so it reduces the quantity of gas. From then, changing way to shift down, I have no more experienced that problem. Other suggestion, always from Honda mechanic, check the battery, if the voltage is low, old battery or if you don't use a battery maintainer, it can generates problems with ECM.

I hope it can help you

Inviato dal mio SM-A510F utilizzando Tapatalk
Mine is European model

Inviato dal mio SM-A510F utilizzando Tapatalk

[max]

Update from Tory;
his high idle issue has been fixed in Thailand with a software update and with his permission here is the video clip;

[url=https://www.facebook.com/groups/778625105544143/permalink/2946485265424772/?sfnsn=xwmo&s=100001271763671&w=n]https://www.facebook.com/groups/77862510...763671&w=n

Thank you Tory for taking the time to update this good news, we appreciate your effort.

[AndersL_imp]

I own a 2013-model with 15000 km on the clock and it began having idle speed issues about two months ago. The problem started while driving through town in hot weather with many stops where suddenly the idle got very low and the engine nearly stalled. This happened only once but afterwards when the bike got warm the idle would never go below 1700-1800 rpm. I went to the Honda shop which initially did not know what to do but after som testing he updated the software and replaced the engine oil temperature sensor. And it seems to have solved the problem so far. The expense was covered under the Honda 5-year warranty.

Sorry for my bad english.

Best regards
Anders

[Lord Popgun]

Its good to know that you guys got your problem solved with a software update. Unfortunately that is not an option in the US.