KTM 640 Adventure owners, sign in please...

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

  1. johnno950

    johnno950 Long timer

    Joined:
    Jul 17, 2010
    Oddometer:
    1,076
    Fairly torquey engine the 660s,39mm carb,free flowing exhaust,airbox.Some of the factory bikes got larger cc (105mmx80mm,or 82mm stroke)it would be interesting to see what size carb is run on these bikes.
  2. skibum69

    skibum69 slave to gravity

    Joined:
    May 14, 2006
    Oddometer:
    5,622
    Location:
    New Melbourne, Newfoundland
    some of this conversation is getting a little over my head so I'll just ask the basic moron question: does anyone see a problem with just swapping to the 660 cam? Does anyone think I should investigate things like carbs, CDI's et any further as I get the motor back together?

    Actually my mechanic did most of the rebuild already thinking I need the bike for CroMag, at least until he noticed I needed a few more starter clutch pieces, sigh. We'll see if they show up before I'm back on a plane on Thursday?
  3. Reckless Relic

    Reckless Relic Adventurer

    Joined:
    Oct 7, 2008
    Oddometer:
    39
    Hi, my experience has been that while the 660 cam may give a little more at the top end it has little or now benefit at low or mid range.
    My bike has the 102mm bore but hasn't had the long stroke fitted so it comes up as a 640 it is fitted with the 39mm Keihen and the 660 rally cam all on standard CDI mapping it was set like that by its previous for racing owner and ran in that state until its rebuild.
    Unfortunately the bike and i went for a swim which finally ended up in a engine rebuild a part of which was to finely fix a problem with the auto decomp, when i priced the a replacement 660 cam I fell off my chair so I went the standard option the result being very little difference unless your at WOT settings where it does drop off earlier.
    Unless your racing which I'm not i don't see any advantage in changing the cam the 39mm carb and the removal of all that anti pollution crap that's a different story.
  4. Low594

    Low594 Adventuring Creep

    Joined:
    Oct 28, 2008
    Oddometer:
    1,160
    Location:
    Oakland, CA
    Another option all together. You could pull the cdi and coil and get a replacement for them. I did this, but ended up going back to cdi, cause I lacked the time and funds to do the dyno runs to get the ignition maps set. I went thru MotoLab with an Ignatech unit. The things I don't like about it is my factory tach doesn't work, but its been on the fritz and you loose the standalone ignition/alt ability. But you gain the ability to upload different premade maps in less than a minute with a laptop! When I go back to running it, I plan to have 3 maps, standard all around, super-economy for multiday travel and balls to the wall offroad power!
  5. skibum69

    skibum69 slave to gravity

    Joined:
    May 14, 2006
    Oddometer:
    5,622
    Location:
    New Melbourne, Newfoundland
    when I have a little more time I'll probably get into this conversation with you via PM. cheers
  6. Low594

    Low594 Adventuring Creep

    Joined:
    Oct 28, 2008
    Oddometer:
    1,160
    Location:
    Oakland, CA
    No problem!
  7. Gregidy

    Gregidy tallabanian

    Joined:
    May 13, 2009
    Oddometer:
    162
    Location:
    peterborough
    I have a new noise from my auto decompresion it sounds like smashing and if i dont pull the manual decomp then starter cant turn the engine over anyone run into this yet ??
  8. zimi

    zimi Adventurer

    Joined:
    Jul 2, 2012
    Oddometer:
    72
    Location:
    Switzerland
    Hi!, I own a 2004 orange KTM Adventure 640R, bought it with 24'000km.
  9. CSF

    CSF Been here awhile

    Joined:
    Mar 12, 2012
    Oddometer:
    167
    Location:
    Ontario, Canada
    Hey, I just wanted to sign with my "new" '02 640 Adventure. I bought if a few weeks ago and plan to do a refresh on it over the winter. I'll take pictures as I go, and post them in some sort of a build thread.

    [​IMG]

    [​IMG]
  10. skibum69

    skibum69 slave to gravity

    Joined:
    May 14, 2006
    Oddometer:
    5,622
    Location:
    New Melbourne, Newfoundland
    where are you with that Rally Connex sticker?
  11. corsa996

    corsa996 Adventurer

    Joined:
    Jul 11, 2011
    Oddometer:
    34
    Location:
    Moe Australia
  12. CSF

    CSF Been here awhile

    Joined:
    Mar 12, 2012
    Oddometer:
    167
    Location:
    Ontario, Canada
    Hey, I think you were ask me that question, I live in Ontario. But I bought the bike out of Quebec. I actually took all of the stickers off the bike about an hour after that pic, since I haven't done any of those rides myself... they were all done by the previous owner.
  13. skibum69

    skibum69 slave to gravity

    Joined:
    May 14, 2006
    Oddometer:
    5,622
    Location:
    New Melbourne, Newfoundland
    gotcha, I figured as much. Check your mileage and find out if the cam rollers have been changed if it's over 30K. Fun bikes.
  14. juames

    juames Have Fun, Don't Die!

    Joined:
    Aug 16, 2008
    Oddometer:
    2,551
    Location:
    Ottawa

    Nice looking bike! :wink: Where about in Ontario?

    [​IMG]
  15. Aussie Steve

    Aussie Steve Long timer

    Joined:
    Apr 9, 2007
    Oddometer:
    1,402
    Location:
    Maitland
    Have been running the 660 Rallye cam for about 5 000kms now. Std internals, fcr 39, staintune muffler and std airbox opened.

    There is a big increase in top end which kicks in hard at 5000rpm. Low to mid is much of a muchness with stock cam but feels weak compared to the hit. (All comparisons are seat of the pants)

    I have been playing around with tuning as the big hit at 5000rpm doesnt feel right, during my playing I have noticed that my 2004 cdi in the low octane position will actually start to miss high in the 4000rpm range before hitting 5000rpm and then pulling hard and clean. To me its feeling like its mainly timing.

    I have read somewhere that early in the duke cdis there was a problem with pistons cracking and they superseded the cdis with less advance. People were getting hold of these early cdis as they performed better in the mid range, I wonder if Gunnerbucks 03 is the same?

    Low594 is this what you were running? http://www.ignitech.cz/english/aindex.htm I hope not as I was considering one of these and losing the ability to kick start without battery would be a dealbreaker for me.
  16. Low594

    Low594 Adventuring Creep

    Joined:
    Oct 28, 2008
    Oddometer:
    1,160
    Location:
    Oakland, CA
    Yep, that's what I've got. Its not in right now, went back to the stock cdi. It worked well when I had it in, just lacked the funds to properly dyno the new carb and ignition module. I'm on the fence about putting it in again, not sure I am ok with loosing the the kick without batt. But I've only needed it 2x in the last 2+ yrs! Its an easy decision right now, as funds have been very low. Bigger issues to deal, like the crappy Touratech IMO and the failing tach!
  17. Aussie Steve

    Aussie Steve Long timer

    Joined:
    Apr 9, 2007
    Oddometer:
    1,402
    Location:
    Maitland
    Thanks Low, save me researching them any further.

    I hear what you say about not often needing the kick. However only time I've ever really needed it was a good days walk from the road, after that I probably appreciate it much more than I should.

    So anyone know the difference in 03 cdi's apart from the lack of octane switch, if any? :ear

    Alternatively anyone in my neck of the woods interested enough to see if it makes a difference to the seat of the pants experience?
  18. CSF

    CSF Been here awhile

    Joined:
    Mar 12, 2012
    Oddometer:
    167
    Location:
    Ontario, Canada
    Thanks! I like the Leo Vince and the kickstand you've got... I live in Whitby (30 min east of Toronto), but I've been riding dirt with my brother in law in Trenton for the last 3 years or so... Looking to get more involved with some rally's and meets next season.
  19. juames

    juames Have Fun, Don't Die!

    Joined:
    Aug 16, 2008
    Oddometer:
    2,551
    Location:
    Ottawa
    The Leo Vince has a nice sound, and is lighter than the stock Supertrap. And the Motech side stand is very handy to have.

    And if you're looking for a rally next year: http://www.advrider.com/forums/showthread.php?t=829554 :deal
  20. bmwktmbill

    bmwktmbill Traveler

    Joined:
    Jul 16, 2005
    Oddometer:
    5,240
    Location:
    Traveler
    Check this thread for your tach problem?.

    http://advrider.com/forums/showthread.php?t=791882&highlight=instrument+lights

    bill