CB1100 Idle speed instability problem

[Riko_imp]

riding style, Lol

anyway, be sure to show him my video of the issue (thats resolved by simply changing the whole throttle body, under warranty)





there is nothing more clear to show an issue like a good video
images say more than words

I think he was referring to throttle use.

I think he was referring to throttle use.
I know

but even the slightest hint of tought of linking riding style as a possible cause of the throttle issue is absurd

all this evolution in automotive and electronical technology such as Fuel Injection, makes his conclusion a joke tbh, especially when you think about it

sounds like a desperate mechanic to me

I think he was referring to throttle use.
I know

but even the slightest hint of tought of linking riding style as a possible cause of the throttle issue is absurd

all this evolution in automotive and electronical technology such as Fuel Injection, makes his conclusion a joke tbh, especially when you think about it

sounds like a desperate mechanic to me
Well I guess you'd better just go sort it yourself then.

There's always those that know best. I was just passing on his comments, and what Ferret says above is in fact just what this guy said to me re the machine 'learning' it's operator. Change the operator and there may be problems. He went on to say that the bike manufacturers are quite open about their fuel injection systems being technically behind those of the car industry.
He was just talking, thinking out aloud and calmly throwing out ideas and possible causes, certainly nothing desperate about him and he certainly wasn't desperately trying to skirt the issue.

I think he was referring to throttle use.
I know

but even the slightest hint of tought of linking riding style as a possible cause of the throttle issue is absurd

all this evolution in automotive and electronical technology such as Fuel Injection, makes his conclusion a joke tbh, especially when you think about it

sounds like a desperate mechanic to me
Well I guess you'd better just go sort it yourself then.

There's always those that know best. I was just passing on his comments, and what Ferret says above is in fact just what this guy said to me re the machine 'learning' it's operator. Change the operator and there may be problems. He went on to say that the bike manufacturers are quite open about their fuel injection systems being technically behind those of the car industry.
He was just talking, thinking out aloud and calmly throwing out ideas and possible causes, certainly nothing desperate about him and he certainly wasn't desperately trying to skirt the issue. thats the point, we cant seem to soet it, nor trained mechanics and if so called trained mechanics answer quastions just to give an answer, thats no help at all.

Btw it got 'sorted' by changing my whole throttle body.

ECU was left alone...

This problem is getting curiouser and curiouser...

I'll say!

What I find interesting is that the problem only seems to show up in stop-n-go city riding. My '13 displayed the low idle condition just once (at 18K miles), after a few weeks of just stop and go city riding. After that I went back to a more normal routine which included making some power on the freeway. Haven't seen the problem recur (it's been about 3 months).

Given the number of variables involved in the system (ECU programming, numerous sensors, control motors, etc...) I don't hold out much hope that we'll be able to isolate the cause of the issue in this thread. It's one of those needle in a haystack things.

Since Honda uses these same components in other bikes without issue, I have to wonder what makes our bikes different? The obvious thing is that our bikes are air cooled, which results in a much wider range of combustion temperatures. Q: Is there any other large air cooled engine that Honda has equipped with this PGM-FI system?

Since Honda uses these same components in other bikes without issue, I have to wonder what makes our bikes different? The obvious thing is that our bikes are air cooled, which results in a much wider range of combustion temperatures. Q: Is there any other large air cooled engine that Honda has equipped with this PGM-FI system?
looking at their lineup on the website, the CB1100 is the only aircooled bike using the modern pgm fi system