Engine stalls periodically at stops

[CrumpetRocket]

My dad has an RSV that does this. Has had it looked at and it's never been fixed. Different brand and bike, but it seems to be a difficult problem to fix.

 

[East Bay Mike]

Thanks everyone, gonna call Triumph on Tuesday and see what they say.

 

[ejv]

My dad has an RSV that does this. Has had it looked at and it's never been fixed. Different brand and bike, but it seems to be a difficult problem to fix.

The first Tuono 1100s did the stall as approaching idle and hot start restart stumble. Not nearly as often as OP is mentioning but Aprilia developed a new map within 2-3 months of the NA introduction. I bought mine about a month after the new map came out so I assumed the dealer had updated the ECU before I bought it. It didn't do the idle stall but definitely did the hot restart stumble. So I brought it back in to get the update. They updated it and it has been fine since. I put them on the spot why they hadn't updated it before I took possession and they pretended it wasn't available yet when I picked it up but I knew differently since it was all over AF1 at the time. I've not spent a single penny at that dealer since.

 

[East Bay Mike]

Got my Speed Triple back from the dealer, they had it for a couple weeks. Switched some relays around or something like that, test rode it a bunch and said it was good.

On the ride home across town, it stalled 3 times.

This was at least the 3rd repair attempt, maybe 4th. Unfortunately I didn’t keep up with documentation and I didn’t get a hard copy of the work orders........ But they said it’s in their system. I hope they’re being honest about that.

The dealer has been very nice to me, and I’ve been nice to them. When I picked it up today they said to please call back regardless of what happens. Well, we still have issues.

How would you proceed from here? What would you expect to happen next

Thanks....

 

[Lucytriple]

I have seen several bikes with this complaint. Some were fixed with a hard reset, you know: run it without touching the throttle until the fan comes on and then some. That solves half of the bikes.

Cleaning the TPS connector may help, cleaning the throttle bodies (gently! like no scrubbing with anything, just a clean wipe of the gummed gas that keeps the butterflies from actuating properly), battery issues and charging system issues are worth looking into.

I tuned a few out with TuneECU, by changing the map around idle. One bike needed a new set of throttle bodies. One wasn't registering the TPS consistently and I never could fix it.

It feels like a shit fix, but you could manually raise the idle just an eensy bit at the throttle stop.

 

[East Bay Mike]

Thanks Lucy! Lots of good ideas, makes sense. I need to think about all this....

I do not want a bike out of warranty that has engine stalling, so some kind of solution needs to be figured out.

Any more ideas would be much appreciated.

 

[East Bay Mike]

Yea, they said they let the bike “warm up for 20 minutes”. I had no clue how to respond to that. No one warms a bike up for 20 minutes, it needs to be tested in real works conditions. Maybe that was a hard reset method?

 

[kuksul08]

The only bike I've had that stalled all the time when coming to a stop was my Hypermotard. As soon as I removed the charcoal canister, it never again stalled - not even once.

When you fill the gas tank, do you fill it to the brim? If you do, it will overflow and fill up the canister. Then you get a rush of gas in the intake that can cause it to flame out at idle speeds. At least that was my theory.

Might be a quick and easy test to plug the lines from the canister to the throttle bodies and see if it keeps stalling.

 

[East Bay Mike]

Interesting idea on the overfilling of the fuel tank, but no I don’t overfill any car because I’m aware of the dangers of overfilling.

Still worth a shot looking into the charcoal canister though, thanks.

Took the bike out this morning and stalled 3 times at separate stoplights over a half hour mixed freeway/city ride.

 

[Tom G]

Interesting idea on the overfilling of the fuel tank, but no I don’t overfill any car because I’m aware of the dangers of overfilling.

Still worth a shot looking into the charcoal canister though, thanks.

Took the bike out this morning and stalled 3 times at separate stoplights over a half hour mixed freeway/city ride.

My R1200 GSA stalls about once per year, before I'm out of the apartment gate. This only happens when garage temperature and outside temperature are just right (not too hot, not too cold). It also frequently misfires on a downhill. Talked to BMW, they mentioned this is due to lean mixture which is mandated by CARB. The engine has 2 spark plugs per cylinder already to mitigate this know problem. Sound almost like a design fault in your case.

Or, like my friends used to joke: Why do the Brits drink warm beer? Because they have a Lucas fridge.

 

[CDONA]

You guys have made me think about mine stalling too. My scrambler does die at lights too, until I get it "stinking hot" from startup, then runs fine. I don't think about it anymore, not an issue.
The carbs have been tuned by the original owner, I bought it in '12
It is tuned so well, I never use the choke/enrichener

We are entering a time that has traditionally been a stalling issue.
Winter blend due in Oct.

 

[Lucytriple]

Yea, they said they let the bike “warm up for 20 minutes”. I had no clue how to respond to that. No one warms a bike up for 20 minutes, it needs to be tested in real works conditions. Maybe that was a hard reset method?

Definitely referring to the hard reset. It's like rebooting - sets all the parameters back to somewhere good. Specifically- start the bike from cold by only touching the start button, no throttle at all. Let it idle until the fan comes on and then 12 minutes after that. The fan may come back on from time to time and definitely don't let it overheat if it looks like it's going that way, but afterwards your problems might be gone.

I would assume that the dealer would have done all the things I suggested, including a hard reset as described as well as a reset with the Triumph tool.

 

[Free_Bird]

Throttle Position sensor TPS is my best guess. It is a potentiometer like a old style volume control on a radio. You may be familiar with what happens when the Volume control starts messing up. Start to hear crackling sounds when adjusting the volume.
Also could the TBS sync is out adjustment. Causing A/F mapping leaning out too much at idle.

 

[danate]

This may sound crazy, but I had a 2007 BMW R1200S that had a stalling when coming to a stop problem. Turns out it was common with that specific bike and it was due to a bad clutch microswitch. I tested it by swapping it with the front brake switch and sure enough the problem stopped. This was after talking to a dealer who was trying to troubleshoot it on another bike and had already replaced fuel injectors, TPS, etc. with no luck.

After a quick google I have found another account of someone having this problem with a speed triple as well. Might at least be worth a try to ask the dealer to put a new clutch switch in and see if it magically fixes things. I know it makes no sense, but these computerized bikes can have strange gremlins.

 

[kxmike]

The only bike I've had that stalled all the time when coming to a stop was my Hypermotard. As soon as I removed the charcoal canister, it never again stalled - not even once.

When you fill the gas tank, do you fill it to the brim? If you do, it will overflow and fill up the canister. Then you get a rush of gas in the intake that can cause it to flame out at idle speeds. At least that was my theory.

Might be a quick and easy test to plug the lines from the canister to the throttle bodies and see if it keeps stalling.

same here...I removed the canister and turned up the idle slightly...no problems since:thumbup

 

[East Bay Mike]

Thanks again everyone.

So my bike was in the dealer for 5 weeks and they said they fixed it. Well, it stalled on the way home and for several rides after. For me, this was my last straw. It’s the 4th or 5th time in was in the dealer Ford the is issue, for a total of about 6-8 weeks.

I called Triumph America and they told me they’d like to have another shop pick the bike up and look at it in case my local dealer was incompetent.

I said no, I just want the bike to be bought back. He said he needed to have a call with Triumph England to discuss. Of course the call occurs on Thursday morning “each week” and I had talked to him Thursday afternoon.

It’s been 12 days and they haven’t responded.
Even if they fix the bike I don’t want it, it’s been stalling since the first time I took it in when it had just over 100 miles.

The resale is screwed too. I couldn’t sell this bike ethically.

Would you let them try to fix it one more time, or insist on your money back?

 

[blrmaker]

Thanks again everyone.

So my bike was in the dealer for 5 weeks and they said they fixed it. Well, it stalled on the way home and for several rides after. For me, this was my last straw. It’s the 4th or 5th time in was in the dealer Ford the is issue, for a total of about 6-8 weeks.

I called Triumph America and they told me they’d like to have another shop pick the bike up and look at it in case my local dealer was incompetent.

I said no, I just want the bike to be bought back. He said he needed to have a call with Triumph England to discuss. Of course the call occurs on Thursday morning “each week” and I had talked to him Thursday afternoon.

It’s been 12 days and they haven’t responded.
Even if they fix the bike I don’t want it, it’s been stalling since the first time I took it in when it had just over 100 miles.

The resale is screwed too. I couldn’t sell this bike ethically.

Would you let them try to fix it one more time, or insist on your money back?

I would try it one more time but I am eternally optimistic.

 

[ST Guy]

Methinks you need to stop being polite and DEMAND they buy it back.

 

[Busy Little Shop]

All your bike needs is the correct maintenance... I had a bike shipped
to my shop from Colorado because the local Honda dealers failed to find the
correct fix... I learned that 5 that's right 5 different Honda Dealers had a shot
troubleshooting Chris's RC45 they ordered $2,500 in parts (2 ECUs and
1 Ignition Module) all without pin pointing the cause... so Chris
shipped his prize to the Busy Little Shop and after 71 hours of
intense beyond the manual troubleshooting I reported success...
The fix taught me a lot...

 

[motomania2007]

I had a similar stalling issue with my '08 R1200R. Turned out to be the ignition switch. BMW uses a sealed magnetic sensor to detect a "key ON" condition. The sealed magnetic sensor is mounted on the bottom of the ignition switch.