New and improved KTM690 WUNDERFEST

Discussion in 'Thumpers' started by crankshaft, Sep 6, 2011.

  1. .chris

    .chris 690 Advenduro

    Joined:
    Feb 15, 2009
    Oddometer:
    96
    Location:
    Auckland, NZ
    Trying to remove my rear shock, not had much luck with the top mount.

    [​IMG]

    Any tips for removing that bolt? only has torx45 inside, not a nice convenient bolt I could get a good trip on. :huh
  2. beaney

    beaney rally racer

    Joined:
    Jul 29, 2009
    Oddometer:
    124
    Location:
    uk, or on a rally.
    Buy a decent torx socket set
  3. Mudguts

    Mudguts when in doubt GAS IT

    Joined:
    Jan 16, 2006
    Oddometer:
    2,145
    Location:
    Some were in , lostralia
    Bit of heat and WD will help and yeah good tools worth there weight in gold
  4. Brute

    Brute Melbourne , outer east .

    Joined:
    Dec 6, 2007
    Oddometer:
    1,073
    With a good pair of pliers . Mine had a lot of loctite.
  5. Xmoto

    Xmoto Death Race

    Joined:
    May 14, 2010
    Oddometer:
    2,107
    Location:
    Schodack,NY
    What fluid to you use in the cleaner. :ear
  6. Buzztail

    Buzztail NMBBMFBK

    Joined:
    Sep 30, 2007
    Oddometer:
    11,003
    Location:
    BUZZTOPIA
    Just warm water and a bit of mild detergent (pine sol, or Mr. Clean) I clean all kinds of shit in them (brass when reloading, etc.)

    Last night I used straight water the first run and it still smelled like fuel inside so I added a cap full of Mr. Clean you could see the crap coming out and off of it.

    A little vinegar works well too
  7. RoninMoto

    RoninMoto Wanderer

    Joined:
    May 12, 2010
    Oddometer:
    1,706
    Location:
    In the mountains?
    You want to put an electric pulse to the injector to get it to open and close. Just sitting there in the cleaner will not clean it completely. A 9 volt pulse of some sort would be ideal.
  8. Buzztail

    Buzztail NMBBMFBK

    Joined:
    Sep 30, 2007
    Oddometer:
    11,003
    Location:
    BUZZTOPIA
    Yeah, that's my next step. I feel like the bike should run as it is, but it just will not start. Once I get that figured out (no codes showing) I'm going to build a small 9v power supply to cycle the injector on and off while in the ultrasonic.
  9. RoninMoto

    RoninMoto Wanderer

    Joined:
    May 12, 2010
    Oddometer:
    1,706
    Location:
    In the mountains?
    Once you make the power supply, just connect a hose with a jug of desired solvent and have it gravity feed through the injector as it is cycling. It will be slow/nonexistent at first but should become a stream when it is clean.
  10. BK.RD.RNR

    BK.RD.RNR Torque Stick

    Joined:
    Dec 8, 2008
    Oddometer:
    5,938
    Location:
    Livin' in the 90's
    Stupid question but, you did remember to reconnect the quick realease for the fuel line right?
  11. Buzztail

    Buzztail NMBBMFBK

    Joined:
    Sep 30, 2007
    Oddometer:
    11,003
    Location:
    BUZZTOPIA
    Was thinking I'd build something along the lines of a pressurized flush or a back flush set up even. Would pulsing it be better than simply holding it open? :ear
  12. Uller

    Uller Long timer

    Joined:
    Jun 18, 2008
    Oddometer:
    1,701
    Location:
    Arlington, WA
    pulsing it would allow pressure to build behind the solenoid for a more forceful blast of cleaner each time it was cycled. I did backflush it first then the normal direction.

    I don't have an ultrasonic cleaner and used the syringe method shown on youtube. seemed to work fine. I've got about 10,500 mi. on my original injector and carry a spare with me.

    I believe they are in the ballpark of $150 here in the states.
  13. Gros Buck

    Gros Buck Beef = Packed Vegetables

    Joined:
    Jun 29, 2006
    Oddometer:
    848
    Location:
    Quebec City, Canada
    From what I understand, the injector in itself IS a pump. When the coil is activated, it triggers a hammer that pushes the fuel inside the motor.

    That said, your local Diesel Engine Tune Up shop will clean these injectors better then you will ever do for few bucks ...

    I know that just trying to dip that think into some "liquid mechanics" wont work 100%

    Paul Jr.
  14. Buzztail

    Buzztail NMBBMFBK

    Joined:
    Sep 30, 2007
    Oddometer:
    11,003
    Location:
    BUZZTOPIA
    Got it back together and not I'm getting no fuel. I can pull the injector out and get a clean spray pattern, but with my finger in the back of the throttle body I get nothing from the injector. Pull it out and it's not consistently pulsing now :dunno

    Injector? electrical?

    Connections look good, new spark plug, good fuel pressure (though I don't have a pressure gauge that'll read that high) drop a little fuel in the TB and it fires right up- No fuel through the injector though. It there a way to test the electrical? Something like a noid light? I doubt my DVM would read quickly enough to see the pulsing.
  15. Beer'o'clock Baz

    Beer'o'clock Baz ?

    Joined:
    Feb 3, 2011
    Oddometer:
    1,767
    Location:
    Toowoomba
    After a gear lever any ideas ? the hammerhead is outa stock for another month
  16. crankshaft

    crankshaft Guns are for pussies

    Joined:
    Aug 12, 2004
    Oddometer:
    14,005
    Location:
    Burlingtron,VT
    You might be better off without the Hammerhead:lol3 I had a problem with the splines on mine and they never called me back, been waiting 8 months! No big deal, it's only $80.
  17. Mudguts

    Mudguts when in doubt GAS IT

    Joined:
    Jan 16, 2006
    Oddometer:
    2,145
    Location:
    Some were in , lostralia
    I had a look at my 500 exc they are closer 690 then hammerhead and cheaper then a 690 lever
  18. .chris

    .chris 690 Advenduro

    Joined:
    Feb 15, 2009
    Oddometer:
    96
    Location:
    Auckland, NZ
    Tried your idea, and now I have managed to strip the torx bolt. :deal
    Who the hell uses torx for such tight bolts, will be replacing it with a proper bolt if I ever get it out.
  19. Night Falcon

    Night Falcon Adventure NZL

    Joined:
    Dec 25, 2008
    Oddometer:
    2,617
    Location:
    New Zealand
    why ya taken off ya shock for?
  20. Brute

    Brute Melbourne , outer east .

    Joined:
    Dec 6, 2007
    Oddometer:
    1,073
    Take the fuel hose off the injector , turn ignition on & see if you get a surge of fuel . If so block the hose with your thumb & turn ignition on again & see if it has pressure ( it should be very hard to stop it spraying ) keep your thumb on it a while to see if it holds pressure in the line.
    Disclaimer ,,, if you set your bike or shed on fire don`t blame me ,