KTM 640 Adventure owners, sign in please...

Discussion in 'Thumpers' started by creeper, Feb 20, 2004.

  1. twqqis

    twqqis Adventurer

    Joined:
    Sep 15, 2010
    Oddometer:
    86
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    Ok, so I went and took off the manual decompression assembly from the rocker cover:
    [​IMG]
    [​IMG]
    And fitted back the rocker cover, and tightened the top four bolts.
    At TDCC, surprisingly, I can still move the rocker shafts axially by moving the rocker arms and pushing them back by pressing on the outside of the cover on the shaft "heads" ? :hmmmmm

    I turned the engine over a few time (via rear wheel) wondering if it might cause the shafts to settle (?) (or maybe it requires a proper amount of revolutions...?) but no change really.
    Except that (probably to be expected) when the valves open, the rocker arms won't move axially (or atleast, not with the bit of force I apply with my fingers).

    It's fairly easy to get (perpendicularly) a feeler into the exhaust side to measure, but on the intake side I need to turn the engine until the valves open; the rocker arms press down allowing space for me to get the feeler guage in. But then, depending on if I pushed it to the one side or the other side with my hands prior to that, I'd get either a too large gap, or none.

    Another video, for your entertainment :drums

    link to youtube

    So, the question remains...



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  2. clintnz

    clintnz Trans-Global Chook Chaser

    Joined:
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    I am fairly sure my rocker shafts could not move after the cam cover was torqued down. Maybe try tightening all the bolts to spec & see if it still moves sideways.

    IIRC I set up the shims for correct play with the cam cover on the bench, with a straight edge over the exposed ends of the shafts to check they were flush with the cover. Then when I bolted it all on I just checked with a straight edge again to set them the same.

    Cheers
    Clint

    Cheers
    Clint
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  3. twqqis

    twqqis Adventurer

    Joined:
    Sep 15, 2010
    Oddometer:
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    Location:
    Africa
    Thanks for the response @clintnz
    Ok, so if I understand you correctly, then with "straight edge over the exposed ends" you mean that in the picture where my thumb sits I want that shaft end (outside of cover) to be flush with the cover? (and then measure)
    I'll go try this and report back...

    [​IMG]
    (re-used from my earlier post on this)



  4. clintnz

    clintnz Trans-Global Chook Chaser

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    Yep, you got it. Good luck.

    Cheers
    Clint
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  5. twqqis

    twqqis Adventurer

    Joined:
    Sep 15, 2010
    Oddometer:
    86
    Location:
    Africa
    Front wheel , disc , tire direction question.

    During bearing inspection I noticed this:

    There is a punched arrow on the discs.
    There is an direction arrow on the tire.
    These point the same way, but did not point in the direction of rotation.

    Someone made an arrow in the opposite direction on the disc with a marker.

    Is there any good reason why the previous owner would have put it this way?

    Is it a huge problem to continue like this? 1122019161027.jpeg
  6. Uncle Conan

    Uncle Conan Been here awhile

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    Front tire was put on wrong. Front tire is designed to take braking load in one direction!
  7. timeOday

    timeOday Long timer

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    New Mexico
    If you just ignore the sharpie arrow, the tire arrow and rotor stamp are in agreement. Can the wheel be installed so those are going the right way?
  8. twqqis

    twqqis Adventurer

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    Agree, is how I understand also.
    Wanted to confirm there isn't a good reason why...

    The hub has a definite right and left, to fit the fork legs which differs per side.

    Instead I have to flip the discs around, easy.
    Then flip the tire around, bit more work, good practice for tire changes :D

    Thanks!
  9. Zuber

    Zuber Zoob Supporter

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    If you pull the spacers I think you'll find the hub will go either way.
    Looks like someone just flipped the wheel to get even knob wear.
  10. twqqis

    twqqis Adventurer

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    Ah, you're right. The right side spacer is different, but can be swapped with the left indeed :thumbsup
  11. flux_capacitor

    flux_capacitor I know a shortcut!

    Joined:
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    Well, I have somehow gone and bought myself another 640 Adventure. I think this is maybe the 6th LC4 I've owned. 2 Adventures, 2 Enduros, a 625 SXC, and now this 2006 Adventure. Its in pretty good shape but I'm going through it just the same as its over 25k miles.

    The headlights were not working when I got it, which I knew about. Pulled the cowling off to reveal an HID system which I did not know about and have since pulled out. Too complicated for my taste. Working on understanding diagrams to get it back to stock and I will go from there. The wiring for the HID goes to the back of the bike into two brown/black wires.

    The other major thing I need to address is that the suspension has been lowered internally and I can't really find WP manuals of just the suspension to help me understand. I've read and read and read all the suspension threads but what I really need to know is how the forks and shock could be lowered internally and how I can get it back to stock heights. Is this work I can do myself or do I need a pro? I'm understanding there are spacers inside or something? I can't make sense of it. Any help on this would be great.

    9B294C78-95BF-4BF1-96C7-610FC66BA302.jpeg

    5A7B32B9-AF7A-450B-8113-6FBF11C63F36.jpeg

    27F6D9D5-66EA-4F1D-8A14-C2DE520DAB1D.jpeg

    C05D3C09-B72B-4A34-8482-423F5E622843.jpeg
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  12. flux_capacitor

    flux_capacitor I know a shortcut!

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    And yeah I know pulling that HID out is a tragedy. I’m just a KISS kinda guy lol.

    36C941B2-4D05-491D-B7AB-B007197CBC11.jpeg

    4058881A-A726-4DB4-9030-B7B202609F2B.jpeg
  13. skibum69

    skibum69 slave to gravity Super Supporter

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  14. flux_capacitor

    flux_capacitor I know a shortcut!

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    that’s a great thread, thanks, and yes that is very similar to what I’ve been thinking about doing. I’ll be reading your thread in more detail later. I’m very nervous that my wiring has been jacked up by whoever installed the HID system. I can tell a quality job was done but clearly the stock harness was spliced into.
  15. skibum69

    skibum69 slave to gravity Super Supporter

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    Good luck, that was Drop's thread but we both did the same mod. He was nice enough to bring me over to Brittania Composites to get my lights from Ian. I really like how they came out on my bike.
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  16. Pooz

    Pooz Been here awhile

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    Hi EvryBody
    I bought a 640 Adv from 2003 this summer with electrical issues (20A fuse that melt every 300km).
    I worked on the wiring 1 day long and found several stripped cables. I think the problems came from them, because the fuse is still in place after 1000km. Yeepeeyeah!
    Suspensions are way better than on the Husqvarna 701, by the way !
    skibum69 and endurists like this.
  17. skibum69

    skibum69 slave to gravity Super Supporter

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    good stuff Obelix
  18. Irongig

    Irongig Been here awhile

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    120
    Does anyone know if the 18 Lt tank from 620 would fit on the adv? I currently have also the 11 lt tank with its seat from a 640 E but would mount a 18 Lt
  19. Irongig

    Irongig Been here awhile

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    This one

    Attached Files:

  20. Droptarotter

    Droptarotter Long timer

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    Also depends on what seat you have. Fronts are different over some years.

    Cheers