Husaberg 70 Degree Owners Thread!

Discussion in 'Thumpers' started by KayaKTM, Nov 22, 2010.

  1. kwb377

    kwb377 Non-Professional Rider On A Not-So-Closed Course

    Joined:
    Dec 2, 2012
    Oddometer:
    391
    Location:
    B'ham, AL
    I bought my 390 used with unknown miles/hours and was experiencing the occasional flame-out under the exact same conditions you described. The idle seemed low, so I bumped it up a couple of clicks and the flame-outs disappeared. Not sure if the two were related, but...
  2. Baggi'tard

    Baggi'tard Assventure rider

    Joined:
    Sep 20, 2006
    Oddometer:
    2,222
    Location:
    Farmhouse Inn, Tellico Plains, TN
    No. Mine's in my tank bag. Stand stays up perfectly with spring tension. Looks like a perfect break-in. I don't have any of those fueling issues, did you check/adjust the TPS, or idle speed?

    Coming to the 70° rally??
  3. jdubb75

    jdubb75 Vicarious Adventurer

    Joined:
    Jan 11, 2008
    Oddometer:
    584
    Location:
    Deep South(ern) Indiana
    My idle speed does seem just a tad low and I already had that on my mind as a possible culprit.
  4. jdubb75

    jdubb75 Vicarious Adventurer

    Joined:
    Jan 11, 2008
    Oddometer:
    584
    Location:
    Deep South(ern) Indiana
    I haven't checked/adjusted any of it yet. I was going to bump up the idle speed out on the trail, but I'll be honest, I was having too much fun enjoying what the 70° berg has to offer. Such a wonderful bike!

    As of now it's looking like I won't be making it down. I'd love to, but I have some other travel plans around that time and there are a couple local rides I want to try to hit. I definitely want to come down and ride that area. The timing is just not working right now.
  5. NoClassic

    NoClassic Adventurer

    Joined:
    Apr 29, 2017
    Oddometer:
    38
    Could be coincidental but the just off throttle flame outs are what mine would do just prior to going into full on overheat / stall mode. Did you notice if the flame outs were happening when the coolant temps were elevated (fan on)?
  6. jdubb75

    jdubb75 Vicarious Adventurer

    Joined:
    Jan 11, 2008
    Oddometer:
    584
    Location:
    Deep South(ern) Indiana
    It did seem to do it a little more in the slower sections of tight singletrack when the fan wouldn be on more often. But, in those sections I was also barely on and off the throttle a lot more too. I have my fan set to come on at 195° and never lost any coolant or boiled gas (that I noticed).

    What did you do to fix it?
  7. NoClassic

    NoClassic Adventurer

    Joined:
    Apr 29, 2017
    Oddometer:
    38
    Replaced every component within the fuel system but the regulator, installed zip-ty inline filter, wrapped the exhaust after the clamp, lined the tank with heat barrier, ECU flashed with EU tune. Still have not tested it after the most recent parts went in. Cant be certain the issue is resolved just yet.
  8. timeOday

    timeOday Long timer

    Joined:
    Jun 20, 2008
    Oddometer:
    1,509
    Location:
    New Mexico
    I didn't want to go straight there, since idle adjust and/or TPS adjust may be all that is needed, but I also had stumbling off idle that was in the end fixed only by a new pump and injector.

    If jdubb's 5-hour 390 has the stock fuel pump I would just get a CA Cycleworks now and save yourself the misery. That, or take some good walking shoes when you go riding.
  9. jdubb75

    jdubb75 Vicarious Adventurer

    Joined:
    Jan 11, 2008
    Oddometer:
    584
    Location:
    Deep South(ern) Indiana
    I've replaced the stock pump with a CA Cycleworks pump already and it has the inline filter at the injector. To appease the heat gods, I also put heat reflective tape under the rear of the tank while I had it off replacing the pump. I'll look into the TPS adjustment, but I'll probably start with bumping the idle just a bit and/or bumpling up the "cruise/green" part of the JD Jetting tuner one step and see if that does anything since that's the "circuit" that covers just off idle and that's where the problem is.

    The bike runs great everywhere else. I mean, it really seems to rip for a 390. I was surprised how easy it was to loft the tire when needed. The problem seemed pretty minor to me and certainly didn't do much to hamper my day of riding.
  10. NVTS

    NVTS Are you ennen oh eff tee

    Joined:
    May 18, 2006
    Oddometer:
    1,040
    Location:
    Big Lick Virginia
    Can anyone recommend a ceramic coater? My 570 is torn down to replace the fuel filter, so now is a good time.
    NVTS
  11. fritzcoinc

    fritzcoinc Enjoying my last V8

    Joined:
    Apr 30, 2008
    Oddometer:
    8,862
    Location:
    Hockley, Tx
    These guys do great work:
    http://www.polydyntx7.com/
  12. fritzcoinc

    fritzcoinc Enjoying my last V8

    Joined:
    Apr 30, 2008
    Oddometer:
    8,862
    Location:
    Hockley, Tx
    On the driveability issue under discussion, could be water in your fuel. If you can find some, try straight gasoline.

    I had a similar issue with my BMW K1200GT. This bikes fuel injection system has the same layout as the Husa. in that, the regulator tee's off the line to the injector that is a dead end at the injector. This is unlike an automobile system that tee's the injectors off a fuel rail with the regulator at the end of the line. At low fuel flow the fuel in the dead end line to the injector gets hot and the water vaporizes making a bubble and causing a miss. In the automotive systems, the fuel flows past the injector and back to the tank through the regulator so the bibble has a place to go.

    I don't have this issue with my 450 but I'm in the fast idle club.
    For my beemer, I fixed the stalling by adding StaBil Marine 360 to all the fuel that goes in the bike. Stabil 360 has a non-alcohol water absorbent additive.
  13. Dao1

    Dao1 Long timer

    Joined:
    Mar 17, 2014
    Oddometer:
    1,102
    Location:
    Austin TX
    one nice little 390 tidbit is that....since all the FE 390/450/570 share the same size air filter box, the same size throttle body, and the same size exhaust....the 390 captures the most gain in terms of fueling and exhaust flow and ultimately very good throttle response. Yea, a 390 sure does rip through the trees.
  14. timeOday

    timeOday Long timer

    Joined:
    Jun 20, 2008
    Oddometer:
    1,509
    Location:
    New Mexico
    And the bottom end on the 390 probably lasts forever too, with less stripping of the countershaft splines.

    Conversely, IMO the 570 shows symptoms of being an overbore, namely running hot, a somewhat short fuel range, and insufficient airflow (given you can add power by cutting a hole through the seat... OK...)
    The Rekluse clutch sold for the 570 is also marginal using the included springs.

    But man, in the sand, it's like riding a flying carpet.
    Dao1 likes this.
  15. Dao1

    Dao1 Long timer

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    Mar 17, 2014
    Oddometer:
    1,102
    Location:
    Austin TX
    who cuts a hole through the seat ?

    LOL!
    [​IMG]
  16. timeOday

    timeOday Long timer

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    Jun 20, 2008
    Oddometer:
    1,509
    Location:
    New Mexico
    Looks like a porta-potty mod for the die-hard rider who just won't stop even when he needs to go
    Dao1 and jdubb75 like this.
  17. keener

    keener Speed changes you.

    Joined:
    Feb 24, 2010
    Oddometer:
    2,042
    Location:
    Toronto, Canada
    390 and 450 have smaller airboxes volume wise but they take the same air filter as 570.
  18. keener

    keener Speed changes you.

    Joined:
    Feb 24, 2010
    Oddometer:
    2,042
    Location:
    Toronto, Canada
    Trailtech tempreture sensor installed. 19mm coupling on engine coolant output line.

    Quick test in 22C ambiant tempreture showed that bike came up to operating tempreture in less than two minutes. That's with thermostat REMOVED.

    It was a bit nerve wracking cutting the coolant line:) but it's all for a good cause.[​IMG][​IMG][​IMG]
  19. fritzcoinc

    fritzcoinc Enjoying my last V8

    Joined:
    Apr 30, 2008
    Oddometer:
    8,862
    Location:
    Hockley, Tx
    More like Tampon clearance.
    LOL
  20. NVTS

    NVTS Are you ennen oh eff tee

    Joined:
    May 18, 2006
    Oddometer:
    1,040
    Location:
    Big Lick Virginia
    I saw a Berg in Harrisonburg, VA today. Anyone?