Idling/stalling issues

tc339

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I have recently developed an idling problem with my bike that I can not figure out. Of course when I brought it into the shop it didnt show any issues.
So here's whats going on:

On first start up and warm up it runs/idles fine, but after 5-10 minutes of riding, at some point I'll pull in the clutch and the bike will die. It will start back up, but if I dont keep the RPMs up it will continue stall, whether Im stopped, or if I am moving. Ill usually know when its going to happen because Ill notice I will be getting above average engine breaking.

If I cycle the key, sometimes it will fix itself and be fine, but lately that is working less and less.

When rolling, if I pull in the clutch, it will either die, or stick somewhere between 1500-3000 RPMs for about a second, then drop down to idle.

Has anyone else had any sort of idling or stalling issues like this?
 

snakebitten

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Gotta be something like the throttle position sensor?

Fly by wire issue?
 

tc339

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Possibly. I dont know if it will help but I'm going to do a TB synch and see what happens. Forgot to mention that it happens more in the morning when its cold...
 

Koinz

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Seems our bikes have a simplified idle speed control. Not much information on it as it is integrated into the throttle by wire controls,

Typically on a conventional fuel injection system, vacuum leaks create erratic idle. I'd say make sure the boots are tight and the vacuum hoses are all attached securely as well as the connectors to the throttle body. After that, need to start looking at the electronic components.
 

tubebender

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Seeing how you're from California and been here awhile, and you stated you're going to to the TB synch, I'll just add a couple of thoughts.

Follow the sticky at the top of this sub forum on the air screw adjustment.
Make sure the vacuum hose on the intake air pressure sensor is seated. (no leaks)

Since I did mine, the only time I have a stall is my own damn fault.
 

gpskevin

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tc339 said:
I have recently developed an idling problem with my bike that I can not figure out. Of course when I brought it into the shop it didnt show any issues.
So here's whats going on:

On first start up and warm up it runs/idles fine, but after 5-10 minutes of riding, at some point I'll pull in the clutch and the bike will die. It will start back up, but if I dont keep the RPMs up it will continue stall, whether Im stopped, or if I am moving. Ill usually know when its going to happen because Ill notice I will be getting above average engine breaking.

If I cycle the key, sometimes it will fix itself and be fine, but lately that is working less and less.

When rolling, if I pull in the clutch, it will either die, or stick somewhere between 1500-3000 RPMs for about a second, then drop down to idle.

Has anyone else had any sort of idling or stalling issues like this?
TC339: Wow this is exactly what my Tenere is now doing!!!! Did you find the answer to the issue. I don't see the solution here?
 

terrysig

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Same exact issue here. Although mine will race much higher at times. Developed this riding season. Dealer mentioned something but wanted me to leave it so I'll live with it until winter.

There are threads on here but nothing to solve it. Clutch mod settles mine down so i just leave it in.

but cold appears to be the key. Warm temps it doesn't seem to occur.

a key cycle does help most of the time.
 

viroid

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I bought a used 2012 with 6450 miles over Labor Day weekend and rode it from Arkansas to northern VA without a problem, a few weeks later I started having similar issues.

Approximately 50% of the time;

The bike either wont idle and stalls anytime I depress the clutch if I do not maintain positive throttle, or the engine rpm's wont fall below 3-4k unless I depress the clutch, at which time it idles at about 1k rpm but jumps around.

The dealership has had it once already and supposedly adjusted the idle. I'm planning to leave it with them as soon as it gets a bit colder and I'm not riding every day.

-ct
 

Puff998

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Stalling

so .....
By playing with throttle she will start ..but soon as I release the the throttle ...no idle ..she just dies . Any ideas as to problem ? .anyone else have this issue ?
 

Puff998

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That's exactly what mine is doing ..
viroid said:
I bought a used 2012 with 6450 miles over Labor Day weekend and rode it from Arkansas to northern VA without a problem, a few weeks later I started having similar issues.

Approximately 50% of the time;

The bike either wont idle and stalls anytime I depress the clutch if I do not maintain positive throttle, or the engine rpm's wont fall below 3-4k unless I depress the clutch, at which time it idles at about 1k rpm but jumps around.

The dealership has had it once already and supposedly adjusted the idle. I'm planning to leave it with them as soon as it gets a bit colder and I'm not riding every day.

-ct
 

EricV

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Re: Stalling

Puff998 said:
so .....
By playing with throttle she will start ..but soon as I release the the throttle ...no idle ..she just dies . Any ideas as to problem ? .anyone else have this issue ?
More info will help. What was the last thing you did, repair or service wise? How many miles on the bike? Year?

Could be as simple as an air leak or crimped vent line. If the tank has been up recently, make sure the two vent lines are back in place and not pulled up and crimped. Check that the vacuum lines at the Throttle bodies are connected.
 

Ramseybella

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Well Well !!
I was about to start a thread on this very same issue....
I was riding along and stopped at a stop sign and guess what?
After three years 34k miles and purring like a Kitten the same SH*T happens to me as well.. :mad:
And NO nothing messed with lately service is not due for another 10k and no indication that I have had anything unusual happening it just won't Idle.
Once it went mad on me 3+k rpm.
Now when you let it sit and start it up it's like nothing even happened not one indication.
I am going to take it out for a spin later or tomorrow to see if it happens again but I know I will have to let Warranty deal with it and the guys I have to deal with are some stupid SOB's at my local Yam dealer, and that scares me.
Another Well Dude We can't find the problem!! ???

::017::
 

Ramseybella

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I have been blowing H-7 bulbs lately now that I think about it, not that it has anything to do with it.
Another question: any of you have had a Flash recently done to your ECU?
The R-6 Boys have had this issue going on as well, one guy calls it a Yamaha thing! ::)
I am just glad it didn't happen when I was in Colorado this month, could you see this going on up in the mountain passes? ::005::
 

EricV

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The solutions are apparently simple, as none of the people in this thread ever come back and say what fixed their issues.

@Ramseybella - Check your ground connections, in regards to the headlight bulbs. Even just the battery ground cable.

As far as the idle, look for air leaks at the vac lines on the throttle bodies. If you haven't done anything, service wise, in a while, it's probably just an air leak that developed somewhere or some crud build up. You might even check to see if the vent lines to the fuel tank are plugged at the bottom. Simple stuff first, as this is most likely the issue.

Don't be like those other guys, post up what you find and what fixed your issues. It will sure help the next forum searcher.
 

Ramseybella

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Thanks EricV!!
I just don't have much time to tinker on her.
I will check the vents and battery connections.
Have to take her in this week or next.
I ride this bike all the time and it will stress me out if I can't ride.. ::26::
I know what you are talking about leaving you stranded with more questions than answers!! ::007::

I will keep an update!!
 

Nimbus

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I'm one of the guys that has the longstanding low revving/dying (800rpms then dies)/and alternately "cruise control" at 4K when the revs won't come down. Nothing has fixed it. I did a full valve adjustment (several exhaust a bit tight) and cleaned the throttle body butterflies and everything else I could find. Previously I took apart every connector ad sprayed it with a high end computer contact cleaner/protector and did the same to the grounds. I did a TB sync after the valve adjustment and then rode the bike 1900miles up to and around Canada and back. It started idling at 800rpms and threatened to die at the Canadian border. I revved it a few times and it got better. Yesterday it did it again on a 1mi trip to the store. It's random. I thought it was to do with the cold/wet/humidity. It maybe due to humidity (I live in SE VA), but it isn't getting worse (that I can tell), and it seems intermittent. F'ing frustrating.
 

Ramseybella

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Took it apart today cleaned the throttle body butterflies cleaned and lubed the throttle cable found a small what appeared to be a deep scratch into the vacuum cap below the battery side throttle body couldn't tell if it was a hole I replaced it, the split vacuum line on the other side was fine.
all the boots are snug and tight air filter was still in good see through condition, then dumped some Lucas injector cleaner into the tank.
I took it for a 25 mile spin the only thing that did seem to happen the idle is running a 1k dropped to around 900 fore a moment at first but not 12 to 11k like before. I still plan on taking it in and have the TB's and idle adjusted and looked at just to be safe.

Yesterday when the issue started the motor temp was hitting 214 today it was at a steady 140 to 190 I let it climb to 211 as the fan already had kicked on before that I let it sit running nothing happened, shut it off waited and it restarted with no issues still idle at 1k.
My guess the butterflies had a bit of gunge on them, but that's just that a guess..

I hate when an unidentified problem happens only once you now live in fear it will happen again.
I will take it to work tomorrow and see if it acts up. ::010:: ::010:: ::010:: ::010::
 
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