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Thread: Help!

  1. #16
    apriliaforum expert LesRiskey's Avatar
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    Quote Originally Posted by plocky View Post
    Hmm, failed map flash maybe?
    Hopefully Aprilia will have a procedure for him to follow with PADS to un-brick it.
    I'm confident they have a fix.

    This whole thing started with a factory bulletin that said to re-flash the ECU.

    I'm sure this isn't the first time some half-wit "mechanic" has screwed it up.
    You don't need to earn my respect.
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  2. #17
    apriliaforum expert pauldayona's Avatar
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    They seem clueless, best bet is that they call Aprilia.
    Paul


    Daytona 1225, Stelvio 1151






  3. #18
    apriliaforum expert LesRiskey's Avatar
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    ^^^

    That's their plan.
    You don't need to earn my respect.
    I give it freely.
    Whether or not you keep it is entirely up to you.

  4. #19
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    Quote Originally Posted by LesRiskey View Post
    Brought my 17 Tuono to the shop because it up and quit a couple times, while coasting with the clutch pulled.
    .
    I have the same problem. Happens quite frequently when the bike is over 200f. Bad news is that new maps doesn't fix the problem. Good news is that as long as you make sure you don't pull in the clutch while in very high rev then there is no problem, in another word, use engine break until rev is under 3k then clutch pull.

  5. #20
    apriliaforum Junkie Thunder2's Avatar
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    Quote Originally Posted by PsyH2O View Post
    Good news is that as long as you make sure you don't pull in the clutch while in very high rev then there is no problem, in another word, use engine break until rev is under 3k then clutch pull.
    I'm curious, under what riding conditions would you pull the clutch at "very" high RPM's? I am assuming the throttle is closed.

  6. #21
    apriliaforum expert LesRiskey's Avatar
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    Here's the deal, though:

    On mine, on all three occasions, I was already going slowly when I pulled the clutch to coast, so no high revs involved.

    Temp might be a factor though, as each time it happened was towards the end of a ride in hot weather.

    The bike is almost always over 200 at low speeds and while sitting at red lights.
    You don't need to earn my respect.
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  7. #22
    apriliaforum Junkie Thunder2's Avatar
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    Quote Originally Posted by LesRiskey View Post
    Here's the deal, though:

    On mine, on all three occasions, I was already going slowly when I pulled the clutch to coast, so no high revs involved.

    Temp might be a factor though, as each time it happened was towards the end of a ride in hot weather.

    The bike is almost always over 200 at low speeds and while sitting at red lights.
    These bikes are usually over 200 at low speeds, and idling, even on low 70 days. How many miles do you have on it? My Tuono, when low on fuel acts a bit off. When really low, it will stall when coming to a stop. I think the fuel is near boiling, or building some vapor in those conditions. Look where the rear exhaust is located in proximitly to the lower part of the fuel tank. Search stalling on the 2017 models.The re-map, and more miles seems to take care of it.

  8. #23
    apriliaforum expert LesRiskey's Avatar
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    Quote Originally Posted by Thunder2 View Post
    These bikes are usually over 200 at low speeds, and idling, even on low 70 days. How many miles do you have on it? My Tuono, when low on fuel acts a bit off. When really low, it will stall when coming to a stop. I think the fuel is near boiling, or building some vapor in those conditions. Look where the rear exhaust is located in proximitly to the lower part of the fuel tank. Search stalling on the 2017 models.The re-map, and more miles seems to take care of it.
    I was low on fuel the last time it happened, but not the first two times.

    Quote Originally Posted by Thunder2 View Post
    How many miles do you have on it?
    I've only had the bike for a week. Just over 200 miles on it at this point.
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  9. #24
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    Quote Originally Posted by Thunder2 View Post
    I'm curious, under what riding conditions would you pull the clutch at "very" high RPM's? I am assuming the throttle is closed.
    It's rare but I had a habit of pulling in both break and clutch at the same time in hard breaking situations. Like when during rapid acceleration on a local road then a car turning in to my lane.

    My 17 RR has the problem where if the rev is high and throttle closed, the rev drops so much the engine just stalls. Only happens when the engine is very hot but it happens sometimes.

  10. #25
    apriliaforum Junkie Thunder2's Avatar
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    My Tuono has stalled a couple of times during hard braking when the fuel is very low. When it is getting close to running out, the braking doesn't have to be hard at all to stall it. This happens with normal downshifts, and pulling the clutch just before coming to a stop at low rpm's
    Funny thing is, tonight I was coming down my street pretty hot, ( WOT, in third gear), you get the picture. I came up to my driveway way to fast, and I just nailed the brakes , stopping as hard as I can remember. I didn't have time to downshift, so I pulled the clutch earlier than normal. And guess what?; the engine stalled. First time this ever happened to me like this. The low fuel light wasn't on, and I had probably 1/3 tank of fuel. My theory is that the fuel sloshes forward under these conditions, and the fuel pump pick-up becomes uncovered, and draws in some air. Fuel starvation and the engine stalls. I told myself afterwards as I rode up my driveway, " don't make this careless riding a habit" !

  11. #26
    apriliaforum expert LesRiskey's Avatar
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    ^^^

    I doubt it's an air bubble.

    I imagine it would take a bit for the air to get to the injectors, so it wouldn't stall immediately from hard braking.
    You don't need to earn my respect.
    I give it freely.
    Whether or not you keep it is entirely up to you.

  12. #27
    apriliaforum expert LesRiskey's Avatar
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    Oh, yeah...

    Aprilia clued the shop in on the factory re-flash and I got the bike back yesterday.

    Rode it back to my office in traffic and hot-ish weather and no stalls.

    Then rode it home with no stalls.

    Then rode in to work this morning with no stalls.

    So far, so good.
    You don't need to earn my respect.
    I give it freely.
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  13. #28
    apriliaforum Junkie Thunder2's Avatar
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    Quote Originally Posted by LesRiskey View Post

    I doubt it's an air bubble.

    I imagine it would take a bit for the air to get to the injectors, so it wouldn't stall immediately from hard braking.
    I was responding to PsyH2O post. Sorry for high jacking the thread.
    As for my fuel starvation theory, it is the big drop in fuel pressure, caused by the temporary lack of fuel at the pump, that would cause the stalling. This is not your case.
    Did you have anymore news on your Tuono?

  14. #29
    apriliaforum expert LesRiskey's Avatar
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    Quote Originally Posted by Thunder2 View Post
    Did you have anymore news on your Tuono?
    See my post above yours.

    From what I understand, when the mechanic did the re-flash, he skipped a procedure or two on his way out of the program.

    Aprilia walked him through it.

    Everything is beautiful.
    You don't need to earn my respect.
    I give it freely.
    Whether or not you keep it is entirely up to you.

  15. #30
    apriliaforum expert coolonthecoast's Avatar
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    Quote Originally Posted by LesRiskey View Post
    See my post above yours.

    From what I understand, when the mechanic did the re-flash, he skipped a procedure or two on his way out of the program.

    Aprilia walked him through it.

    Everything is beautiful.
    Good to know, I hope it stays that way.
    40 odd powered two wheelers over 40 odd years. Currently in the garage are a 2016 Tuono V1100RR and a '79 Honda CB550F

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