Moto Guzzi Stelvio (merged) threadfest...

Discussion in 'Moto Bellissima: All Other Dualsports' started by young skywalker, Jan 8, 2006.

  1. Canuck1969

    Canuck1969 Been here awhile

    Joined:
    May 7, 2010
    Oddometer:
    695
    Location:
    Burlington Ontario Canada
    Wow...I could see how that would drive you nuts. Makes no sense since the fueling/injection pulse is sensor/ecu driven. Can't even see it injector related as even if the injector was flowing too little fuel the computer would not even know that and increase the pulse unless the probes were sending feedback to tell it. Almost like it is stuck in a warmup cycle or overfueling thinking the air is colder??? Ambient temp sensor/Engine temp sensors making sense or in failsafe mode?? If I remember correctly, the pulse durations you said you saw coincide with a cold engine. Although I am sure you looked at that already.

    In open loop, something is driving it to the higher fueling end of the map. RPM or TPS output to the ECU are the only two factors on the map that drive that?? Although GD should display that and would look obvious. Just spitballing at this point.

    Are both cylinders showing the same fueling issue?
    Dracula likes this.
  2. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    My vote, assuming TB's are clean and no air leaks, is to plug the stepper intake and see if it makes *any* difference.
  3. bross

    bross Where we riding to?

    Joined:
    Nov 10, 2005
    Oddometer:
    6,012
    Location:
    Osoyoos, BC
    Couldn't be an old school early FI fix of wiring in a resistor, to "fool" the ECU thinking it was cooler, hence more fuel. That was a "fix" on one of my Kawasaki's years ago.
  4. Canuck1969

    Canuck1969 Been here awhile

    Joined:
    May 7, 2010
    Oddometer:
    695
    Location:
    Burlington Ontario Canada
    That was why I asked about the air and engine temps. Curious to see if Pete confirmed the temperatures being realistic to the surroundings. That was a "fix" at the beginning that some people tried to richen up the Stelvio. Would cause the same issue with and without lambda probes so it does fit. Even switching the ECU's would make no difference. Has to be sensor related. No mechanical thing would make the pulse duration longer, especially with the lambda probes providing a feedback loop.
  5. hipine

    hipine Been here awhile

    Joined:
    May 9, 2012
    Oddometer:
    183
    Location:
    Bailey, CO USA
    Agreed, that's odd enough. What if we stop there and list the things that work together to "create" an injector pulse. Must be a finite list that could be worked through from beginning to end. As Drac alluded to, I think it would be best to "know" the injector on time from direct measurement since the simplest system has fewest potential failure modes. But I also agree "the +30 test" contributes a lot of information on a lot of peripheral systems when it shows the bikes run identically when the SW is showing the same pulse widths.

    Was anything else changing while this CO offset experiment was going on? Bike getting warmer, etc?
    Are you able to "switch the problem on and off" - I mean like watch the IPW change from 1.7 to 0.7 and vice versa when you change the CO offset from 25 to 30 and back and forth?

    Curious indeed.

    -Dave G.
  6. gbtw

    gbtw Been here awhile

    Joined:
    May 1, 2012
    Oddometer:
    351
    Location:
    Zoetermeer, Netherlands
    Battery voltage stable? How is the shielding of the ECU? Any RF interference?
    Dracula likes this.
  7. motomoda

    motomoda Long timer

    Joined:
    Apr 23, 2016
    Oddometer:
    1,198
    Location:
    Oz
    No it couldn't! The W5AM isn't the smartest brain around but it's no abacus! Sensor foolers are a six lane highway to a wrecked engine. Under NO circumstances use them, ever.
  8. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    Not that it helps, but I love this guy's work bench
    [​IMG]

    [​IMG]
    bobw, crk and joenuclear like this.
  9. Jonnybeau

    Jonnybeau 2014 Stelvio NTX

    Joined:
    Oct 20, 2017
    Oddometer:
    161
    Location:
    Cheshire East UK
    Hi All,

    Was just trawling the 'tube' looking at V7 Stone reviews - guess what I saw-

    Yep ...An unregistered Stelvio ...:wings... Pictured outside Flying Tiger, Maplewood MO - Uploaded Oct 17.. get it quick before it goes :rayof :pope... you tube link

    Stelvio Caputred outside.JPG

    Edit : - You Tube review not worth it - once you have seen the Stelvio - close youtube
    aftCG likes this.
  10. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    I was actually curious why the Stelvio is still listed, as of today, on USA and Canada sites. My guess - they still have new ones in stock. If I was looking to buy it, wouldn't hesitate, and probably even get a great bargain. Or, is everyone waiting for the V85.. :augie

    upload_2018-1-12_14-19-33.png
  11. Jonnybeau

    Jonnybeau 2014 Stelvio NTX

    Joined:
    Oct 20, 2017
    Oddometer:
    161
    Location:
    Cheshire East UK
    I am surprised also - I would have through that it would have gone bye know.

    If I had that cash and lived in the States - I would be down there like a shot just to pick up a late edition Stelvio - Keep it Clean and lock it away (after a nice dousing in ACF50) - taking it for an occasional ride once or trice a month (sunny days only) and be the envy of all everyone in a couple of years when they realise that it is such a good bike and want one......

    No chance of one in UK/Europe - they are not allowed to sell them.... ( ....ing Euro 4 !!!)

    At least I have one now !!! :jkam

    On the subject of 'new' bikes - my Brother in law is just about to get his sticky mits on a 2011 Norge.. No it has not been rollered yet.. and yep I have made him aware of it....It is one of the first things he is planning on doing to it.

    He said that he may have seen Pete Roper on your tube taking off the cam box when he was looking at the cam roller issues. :clap


    Edit- spell check :y0!
    Dracula likes this.
  12. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    I would do that, with a black Griso. :lol3

    The fight for emissions becomes ridiculous, after a certain threshold, imho.

    And yes! Enjoy what you have :thumb

    Congrats to your Brother in law for his Norge! Definitely check the engine and rollerise it asap. I would not buy used again, unless really forced to, and then I'd very carefully go over everything with a fine tooth comb. It helps to not be a n00b about the specific machine too... don't ask how I know.. :photog
    bobw likes this.
  13. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    Quick question. What is the trick to pull out undamaged the CARC plastic clips that are holding the brake line and wire? They seem to spin around a little but no movement IN/OUT of the CARC alloy. It almost looks like there is a pin that needs to pop out but I couldn't move it and am reluctant to ruin them. Time to crack the old CARC that was leaking, to see what is wrong, as I had it under the work bench for two years.
  14. Guzzi_Guaio

    Guzzi_Guaio What? It's a Guzzi!

    Joined:
    Dec 9, 2016
    Oddometer:
    22
    Location:
    Toronto, ON
    I cannot figure out how to remove or temporarily remove those clips. When I drain the CARC the drain plug interferes with one of the clips (or vice versa in this case). It's just a pain. And it appears that it takes considerable force to remove the pin and clip with the great risk of breaking it so normally I just leave it in place.

    So I too ask "What is the trick to pull out (undamaged) the CARC plastic clips?"
    Dracula likes this.
  15. Dracula

    Dracula Dust in the wind

    Joined:
    Dec 3, 2011
    Oddometer:
    15,719
    Location:
    here
    I could not find them in the parts manual either, to get an idea how they look before being installed.
  16. WitchCityBallabio

    WitchCityBallabio Guzzi weirdo

    Joined:
    Oct 23, 2008
    Oddometer:
    2,226
    Location:
    Wales, Massachusetts
    I always assumed they just unscrewed.
    Dracula likes this.
  17. motomoda

    motomoda Long timer

    Joined:
    Apr 23, 2016
    Oddometer:
    1,198
    Location:
    Oz
    Nah, they seem to be ribbed. They won't come out without severe brutality. I just leave 'em alone.
    Dracula likes this.
  18. Jonnybeau

    Jonnybeau 2014 Stelvio NTX

    Joined:
    Oct 20, 2017
    Oddometer:
    161
    Location:
    Cheshire East UK

    I like the Green Griso with the Brown Leather Seat....
  19. motomoda

    motomoda Long timer

    Joined:
    Apr 23, 2016
    Oddometer:
    1,198
    Location:
    Oz
    Griso only has one 'S' you fucking philistine!

    The green ones are called 'Tenni's' after the famous racer. I have a full set of Tenni bodywork in the shed for anyone willing to pay for it.....:kat
    Dracula likes this.
  20. Jonnybeau

    Jonnybeau 2014 Stelvio NTX

    Joined:
    Oct 20, 2017
    Oddometer:
    161
    Location:
    Cheshire East UK
    I always wondered why the green ones where always more expensive.. ta for the info... another one for the wish list