V2 Stalling/Turning Off

Ducati Forum

Help Support Ducati Forum:

M

MikeyDucati

Joined
Jun 30, 2021
Messages
37
Location
Florida
Hey folks, my post first here. I have been perusing your forum for a while and, most recently, been checking out specific threads on the issue I am encountering on my 2021 Ducati Panigale V2.

The bike is currently at the dealer for a second time in a row for this issue. I am encountering something I have read about with other bikes, e.g., 959, 999, etc., but not for the Panigale V2. It stalls/turns off randomly while I am at a red light, stopped, or when I am slowing down. It will either happen if the clutch is depressed with 1/2 gear, or the bike is in N with clutch depressed or clutch left alone. I cannot figure out for the life of me why this is happening. The dealer also doesn't know and is looking to see if the issue can be fixed, but the last time I took it it was connected to the computer and no errors were found and everything was reset. I am still having the issue.

Have any of you encountered this issue? If so, how did you resolve it? Thanks, in advance, for your help.
 
Last edited:
Welcome to the world of Ducati, I've had three Duc's and they all had stalling issues when new. Honestly I think these motors are so tight from the factory they don't run right until you get some miles on them. The stalling seems to magically disappear when the bike gets loosened up. Of course it could be something else but if the shop says cant find it I bet that's all it is.
 
Thanks for the reply. I am hoping that it is just a Ducati thing, but sadly, it does it sporadically with no way of duplicating it. The dealer has it and they told me they would open up a case with Ducati NA, which I am not sure if that will even help. I have read of issues through they issues with other bikes, e.g., charcoal canisters having to be removed.
 
Have them remove or disconnect your charcoal canister. I had low idle issues and hot start issues. You don't need to remove the charcoal/evaporation canister unless you want to save weight. Just disconnect it so it doesn't interfere.
 
7th Gear said:
Have them remove or disconnect your charcoal canister. I had low idle issues and hot start issues. You don't need to remove the charcoal/evaporation canister unless you want to save weight. Just disconnect it so it doesn't interfere.
Click to expand...

Is this something you had done to your bike? Do you have a Panigale V2? I have read that dealers are reluctant to do that.
 
yes, had it done and seems to have fixed my problem. Many dealers won't do it. There are youtube videos on how to do it. Or go to an independent mechanic
 
It’s a violation of a federal law if they remove it or render it inoperative. There is a low chance of getting caught, but when people on here blather that their dealer did it, and sometimes tells the forum which dealer, well ummmm it’s a risk. A tuner shop in Virginia got caught passing emissions testing and faking the results so that tuned cars with no cats at all or illegal tunes, passed inspection ….they got shut down so to speak.
 
MikeyDucati said:
Is this something you had done to your bike? Do you have a Panigale V2? I have read that dealers are reluctant to do that.
Click to expand...
I have a 21 V2 that was shutting off or struggling to start. It ended up being the charcoal canister. The dealer agreed to take it off to see if that resolved the issue. Like you I had it in several times right after the 600mi service. It did so they agreed to leave it off. I also found that not letting the tank get too low helps prevent the vapor lock or whatever else was going on, particularly when the bike was already hot or the weather was hot. I also now only use “brand name” gas like Shell, 76, Texaco etc. Even though I was always using the highest octane available, sometimes the convenience store fuel or on military bases in my case wasn’t good enough for this picky Italian beast. Best of luck and ride safe!
 
Jmpropst said:
I have a 21 V2 that was shutting off or struggling to start. It ended up being the charcoal canister. The dealer agreed to take it off to see if that resolved the issue. Like you I had it in several times right after the 600mi service. It did so they agreed to leave it off. I also found that not letting the tank get too low helps prevent the vapor lock or whatever else was going on, particularly when the bike was already hot or the weather was hot. I also now only use “brand name” gas like Shell, 76, Texaco etc. Even though I was always using the highest octane available, sometimes the convenience store fuel or on military bases in my case wasn’t good enough for this picky Italian beast. Best of luck and ride safe!
Click to expand...

Thanks for the response and the information. So, with respect to gas, I have only been putting in Chevron with techron premium gas, nothing lower and nothing else. I suppose that is good. Since they removed the charcoal canister, did it resolve the issue? I have yet to encounter the issue where it struggles to start, but the stalling/turning off, like I stated above, is what happens to me. I also feel like the bike struggles to maintain idle and sometimes bounces around a lot.
 
MikeyDucati said:
Thanks for the response and the information. So, with respect to gas, I have only been putting in Chevron with techron premium gas, nothing lower and nothing else. I suppose that is good. Since they removed the charcoal canister, did it resolve the issue? I have yet to encounter the issue where it struggles to start, but the stalling/turning off, like I stated above, is what happens to me. I also feel like the bike struggles to maintain idle and sometimes bounces around a lot.
Click to expand...
Yes, runs like a champ.
 
Yep, I removed mine (I don't live in California) and my starting issues went away. This is the same for all of my motorcycles (but Ducati seems to be worse than others with the canister connected for me).
 
0260n25 said:
Yep, I removed mine (I don't live in California) and my starting issues went away. This is the same for all of my motorcycles (but Ducati seems to be worse than others with the canister connected for me).
Click to expand...

That's good to know. Do you have a V2? Someone told me that the previous 899 and 959s had the issue, but that the newer bikes shouldn't, and I am baffled by it. Thanks again for the response.
 
MikeyDucati said:
That's good to know. Do you have a V2? Someone told me that the previous 899 and 959s had the issue, but that the newer bikes shouldn't, and I am baffled by it. Thanks again for the response.
Click to expand...

I have a 2021 V2. I found that the extreme heat and the odd shape of the tank cause pressure/expansion more than my other motorcycles, and spits out gas to the overflow/charcoal canister quite easily. This explains why my canister was 1/2 full of gas when I removed it and others have reported similar experiences with gas-filled canisters. Tank pressure and gas in the canister can cause starting issues. This is not unique to Ducati, but they do seem to have a setup that hates these canisters. Overseas models do not have the canisters (at least not any that I know of). My understanding is that California is the only state requiring the canisters in the US, so Ducati just puts them on all bikes to reduce inventory costs. You can find references to canister issues from many, many years back.

You can easily remove the lines (according to instructions on this forum or the Internet) and plug the vacuum line to test without removing the canister. If you don't see an improvement, you can simply hook everything back up the way it was. You will likely see an improvement.

-0260
 
0260n25 said:
I have a 2021 V2. I found that the extreme heat and the odd shape of the tank cause pressure/expansion more than my other motorcycles, and spits out gas to the overflow/charcoal canister quite easily. This explains why my canister was 1/2 full of gas when I removed it and others have reported similar experiences with gas-filled canisters. Tank pressure and gas in the canister can cause starting issues. This is not unique to Ducati, but they do seem to have a setup that hates these canisters. Overseas models do not have the canisters (at least not any that I know of). My understanding is that California is the only state requiring the canisters in the US, so Ducati just puts them on all bikes to reduce inventory costs. You can find references to canister issues from many, many years back.

You can easily remove the lines (according to instructions on this forum or the Internet) and plug the vacuum line to test without removing the canister. If you don't see an improvement, you can simply hook everything back up the way it was. You will likely see an improvement.

-0260
Click to expand...

Damn! It is almost like you know exactly what is wrong with my bike. So, I was told when I first purchased the bike to never fill it with gas all the way to the top. I wasn’t told why, but I suspected that it would overflow and get routed to the charcoal canister, though, I am not certain.

Did you remove it yourself or have the dealer do it?
 
The easy way to do is is just to attach the vent line to the overflow line with a plastic Y-fitting leaving everything else connected and the EVAP canister in place.

If you leave the vacuum line plugged into the EVAP canister, and the purge valve connected you won't have to worry about any check engine codes. There are a few connectors which are attached to or routed in the EVAP canister's housing, so unless you are doing a full exhaust I'd just leave it.

Here the vent line is on the left, overflow on the right.

IMG_0512.jpg
 
The only downside to leaving the purge valve hooked up to the canister is it draws from the canister on startup. If the canister is flooded with gas, sometimes this can cause too much fuel to enter the cylinder and have troubles with starting due to a too rich fuel air mixture. It's best to disconnect that line from the canister and stick a bolt in it to cap it off.
 
No. The vent line would not be connected to the canister anymore, and the canister gets flooded through the vent line.

The overflow line was always vented outside of the bodywork.

The vacuum line only draw from the EVAP canister when the purge valve opens on startup, according to another poster here. I haven't verified this though. Either way, if the vacuum line is just left connected, it will only be drawing charcoal filtered air only when the purge valve is opened.
 
bp_SFV4 said:
The vacuum line only draw from the EVAP canister when the purge valve opens on startup, according to another poster here. I haven't verified this though. Either way, if the vacuum line is just left connected, it will only be drawing charcoal filtered air only when the purge valve is opened.
Click to expand...

That's exactly my point. In normal operation, it pulls fumes from inside the canister (hence it being called a purge valve) on startup. If your canister is flooded, as many often are when people are experiencing issues, it will pull gas through the purge valve instead of just fumes. This can cause the fuel mixture to be too rich on startup, and is sometimes why bikes with flooded canisters struggle to start.

Basically, if the bike is brand new and the canister is fine, then yeah, no need to plug the purge valve line. But the EVAP system is causing starting or running issues, it's at the point where you should plug the purge valve line and completely isolate the canister from everything else (removing it, ideally).

Smart-moto make a purge valve eliminator plug if you would like to remove the valve and terminate the hose sooner.
 
I have to imagine the way this canister works, as explained here as well, is similar to this:




Now he says that you may have fuel leaking, however, if you plug the valves, why would that happen? It would just be rerouted back to the fuel tank or overflow at the top?
 
MikeyDucati said:
I have to imagine the way this canister works, as explained here as well, is similar to this:




Now he says that you may have fuel leaking, however, if you plug the valves, why would that happen? It would just be rerouted back to the fuel tank or overflow at the top?
Click to expand...


You plug the hose that goes to the intake (motor), but you don't plug the vent/fumes hose. Since the vent/fumes hose sometimes spits gas instead of just fumes, you may get some gas that leaks out of the hose onto the ground or bottom of the bike (depending on where you route your line). Hot gas tanks (especially when full) may spit gas, which is why the canister can get filled up and cause starting issue. Removing the canister means you will now spit gas on the ground (or in a catch can if you install one).
 

Similar threads

N
Looking for advice and tips
2 3
Replies
41
Views
888
baggerman
B
V
V2 2022 Panigale leaking fluid
Replies
4
Views
440
Aussie V2 Bayliss
A
T
2024 V2 electrical system is 18 volts?
Replies
7
Views
351
TakoDivah
T
T
2010 1198S Slow Turning Over Issue
Replies
2
Views
115
ThatOne1198
T
D
Thinking Of Switching from 848 to V2
2
Replies
25
Views
1K
RocketSFV4
R

Register CTA

Register on Ducati Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions

Back
Top