New and improved KTM690 WUNDERFEST

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

  1. Xmoto

    Xmoto Death Race

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    What fluid to you use in the cleaner. :ear
  2. Buzztail

    Buzztail Nomad

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    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
  3. RoninMoto

    RoninMoto Wanderer

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    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.
  4. Buzztail

    Buzztail Nomad

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    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.
  5. RoninMoto

    RoninMoto Wanderer

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    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.
  6. BK.RD.RNR

    BK.RD.RNR Torque Stick

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    Stupid question but, you did remember to reconnect the quick realease for the fuel line right?
  7. Buzztail

    Buzztail Nomad

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    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
  8. Uller

    Uller Done with this BS

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    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.
  9. Gros Buck

    Gros Buck Beef = Packed Vegetables

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    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.
  10. Buzztail

    Buzztail Nomad

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    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.
  11. Beer'o'clock Baz

    Beer'o'clock Baz Long timer

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    After a gear lever any ideas ? the hammerhead is outa stock for another month
  12. crankshaft

    crankshaft Guns are for pussies

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    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.
  13. Mudguts

    Mudguts when in doubt GAS IT

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    I had a look at my 500 exc they are closer 690 then hammerhead and cheaper then a 690 lever
  14. .chris

    .chris 690 Advenduro

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    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.
  15. Night Falcon

    Night Falcon Spilt milk makes me cry like a girlie girl :-(::

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    why ya taken off ya shock for?
  16. Brute

    Brute Melbourne , outer east .

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    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 ,
  17. LOZ

    LOZ Long timer

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    if its anything like mine ....... ..cut it off..start looking on e-bay for a secondhand tank,when trying to get it out the nut in the plastic gouged a hole in the tank and i had to fit a new tank

    £950:eek1

    loz
  18. Buzztail

    Buzztail Nomad

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    Done, and done. I don't see it being a supply issue. I have the back flush fixture for the injector set up. I'll get on that this morning and see what happens.
  19. daveknievel

    daveknievel Long timer

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    I have a shifter on my 690 that is from my 05 450 SMR. Same thing. They only offer 4 different shifter for ktm's. And the hammerheads aren't out of stock. Tucker rocky has 5 in ILL, 9 in cailf. None in the PA . Warehouse.
  20. Buzztail

    Buzztail Nomad

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