Random Engine Stalling - 2013 Hyperstrada 821

Bones302 · Sep 5, 2018

Am hoping I can get some answers from fellow owners.

2013 821. I got it in March with ~700 miles.
Mechanically bone stock except for a GPR exhaust can I recently installed.

I noticed early on that once in a while the bike would stall as I decelerate to come to a stop (after I press in the clutch to downshift).
Took to dealer in May and they believed the AIS valves had carbon buildup, as they were giving wonky readings on the computer. they cleaned them up and all was fine for a month or so.

Now with 2,000 or so miles on the bike, am noticing the issue has returned and on every other ride, I will get the random stall. starts right up after stalling (fun to do as you are rolling and realize the engine died)

As I mentioned, no mechanical mods to the bike other than the GPR can (condition existed prior to installing it).

happens whether it is 40 degrees or 90 degrees out.
Thoughts?

monocog007 · Sep 5, 2018

Have they done all software updates to the ECU? As I remember there was a software update to fix this.

kuksul08 · Sep 5, 2018

canister

edgary · Sep 5, 2018

kuksul08 said:
canister

I don't know... I've had plenty of problems with the charcoal canister but stalling while decelerating was not one of them.

kuksul08 · Sep 5, 2018

edgary said:
I don't know... I've had plenty of problems with the charcoal canister but stalling while decelerating was not one of them.

It was my only problem with it. It would happen 3-4 times a day. I removed it and it never happened again.

gatdammit · Sep 5, 2018

My 2013 would occasionally stall on decel - usually downshifting from higher gears - when it was new. I think an ECU update and canister removal solved it. Not sure which because dealer did both at same time.

Bones302 · Sep 6, 2018

monocog007 said:
Have they done all software updates to the ECU? As I remember there was a software update to fix this.

Yes, all the service bulletins were taken care of, including software updates.

I think I will pull the canister off in the next few weeks. I want to use that space for a stebel horn anyway.

edgary · Sep 6, 2018

kuksul08 said:
It was my only problem with it. It would happen 3-4 times a day. I removed it and it never happened again.

gatdammit said:
My 2013 would occasionally stall on decel - usually downshifting from higher gears - when it was new. I think an ECU update and canister removal solved it. Not sure which because dealer did both at same time.

I stand corrected. The good thing is that it's easy to remove it and see if it helps, and to put it back on if it doesn't and you want it back.

appliance821 · Sep 6, 2018

Just out of curiosity, what engine mode were you in. I had this happen after some low speed stuff including clutch slippage off road. I was in sport mode. Don't know if it matters, but who knows.

Bones302 · Sep 7, 2018

appliance821 said:
Just out of curiosity, what engine mode were you in. I had this happen after some low speed stuff including clutch slippage off road. I was in sport mode. Don't know if it matters, but who knows.

I use touring. have noticed it also stalled under sport and urban.

Baloo · Mar 21, 2019

Bones302 said:
Am hoping I can get some answers from fellow owners.

2013 821. I got it in March with ~700 miles.
Mechanically bone stock except for a GPR exhaust can I recently installed.

I noticed early on that once in a while the bike would stall as I decelerate to come to a stop (after I press in the clutch to downshift).
Took to dealer in May and they believed the AIS valves had carbon buildup, as they were giving wonky readings on the computer. they cleaned them up and all was fine for a month or so.

Now with 2,000 or so miles on the bike, am noticing the issue has returned and on every other ride, I will get the random stall. starts right up after stalling (fun to do as you are rolling and realize the engine died)

As I mentioned, no mechanical mods to the bike other than the GPR can (condition existed prior to installing it).

happens whether it is 40 degrees or 90 degrees out.
Thoughts?

Did you ever get this fixed? What solved it?

Bones302 · Mar 21, 2019

Well, for the most part. Dealer found high carbon build up on the reed valves. they cleaned them up and I only had the bike stall 2 or 3 times over the winter.

I'm actually taking it in tomorrow for a belt change and just having them take off the evap canister. I'm thinking that also contributed to the issue.

gatdammit · Mar 22, 2019

Oh, yes. **** can the EVAP canister. Mine wasn't on long enough to even know if would cause stalling but my dealer said it is troublesome.

Baloo · Mar 26, 2019

Bones302 said:
Well, for the most part. Dealer found high carbon build up on the reed valves. they cleaned them up and I only had the bike stall 2 or 3 times over the winter.

I'm actually taking it in tomorrow for a belt change and just having them take off the evap canister. I'm thinking that also contributed to the issue.

I couldn't find a reason why the canister would make the bike stall. Would you guys be able to explain, or point to an explanation?
Mine is still in warranty, I might have to convince the dealer.

gatdammit · Mar 26, 2019

search it. Biggest problem is it vapor locking or something if you put too much gas in the tank. There's other issues my dealer went into just before it "fell off" during 1st service.

edgary · Mar 26, 2019

Baloo said:
I couldn't find a reason why the canister would make the bike stall. Would you guys be able to explain, or point to an explanation?
Mine is still in warranty, I might have to convince the dealer.

You can start by reading this, then doing this.

Fotoguzzi · Aug 28, 2019

gatdammit said:
search it. Biggest problem is it vapor locking or something if you put too much gas in the tank. There's other issues my dealer went into just before it "fell off" during 1st service.

Reading what? I'm having this problem now, died on deceleration coming to a stop light. Evan can removed long ago.

gatdammit · Aug 29, 2019

Fotoguzzi said:
Reading what? I'm having this problem now, died twice on deceleration coming to a stop light. Evan can removed long ago.

Edgary has hyperlinks to threads in his post. You have to at least attempt a search before posting a problem thread. The Strada is 6 years old so not a lot of new problems we haven't discussed in depth.

Fotoguzzi · Aug 29, 2019

Sorry about that but I did use search to find this thread.. the only hyperlinks I see lead back to this same thread, am I missing something?
My canister has been off since I got the bike.. it looks like the hose to it is plugged and not leaking.

Hyprdrv · Aug 7, 2022

My bike also stalls randomly.

Evap canister was removed last year - no noticeable improvement.

No fix that I ever found, here or elsewhere.

Random Engine Stalling - 2013 Hyperstrada 821

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