KTM 640 Adventure owners, sign in please...

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

  1. clintnz

    clintnz Trans-Global Chook Chaser

    Joined:
    May 17, 2004
    Oddometer:
    3,665
    Location:
    Rotoiti, New Zealand
    Good luck with the repairs - a couple of other jobs you may want to do while you are working on the bike (assuming they haven't been done already) are replace the cam follower rollers & rebuild the water pump, these items are well known for wearing out at around the 50K km mark.

    Cheers
    Clint
  2. Tseta

    Tseta Lost

    Joined:
    Nov 30, 2008
    Oddometer:
    674
    Location:
    On the road
    I would also take a very close look at the valves. Collective experience shows that many LC4's typically require new valves and possibly valve guides at those kilometers.

    -T
  3. erdsh

    erdsh KTM 640 Adventure

    Joined:
    Mar 14, 2008
    Oddometer:
    104
    Location:
    GY
    Thanks.
    I'll take a look at the valves next time.
    The IMO was not fixed, I'll try undestanding it better the next week.
    the fuel pump was working well, the fuel line to the carb was dry and it was leaking. I replaced it and I hope this fixed it. I'll test it in the next few days.
    I'll replace the clutch next week and then I'll check the water pump and cam rollers.
    Thanks a lot.
  4. fuzzydude2

    fuzzydude2 CMA'er

    Joined:
    Oct 30, 2008
    Oddometer:
    212
    Location:
    Phoenix, Az
    I have a 1998 620RXC with a Lc4 motor. I had to replace the plastic screw where the neutral light wire attaches. Now it don't work? Anyone have an idea? I am thinking there may be a spring or something that goes in there also but I can not find a part# and does not show anything in the books I got.
    thanks,
    R-
  5. mxchamp

    mxchamp Registered Lurker

    Joined:
    Mar 27, 2005
    Oddometer:
    1,775
    Location:
    The corn state,11 curves in 318 miles (Iafalls IA)
    HTML:
    I'll replace with the original parts and take this opportunity to replace the bearing behind the clutch basket,
    as seen in this thread:
    My puller is back in my hands if you need to borrow one for this job.

    Order the bearing and clutch cover gasket now, it will take awhile to get the items.

    PM me for details.
  6. erdsh

    erdsh KTM 640 Adventure

    Joined:
    Mar 14, 2008
    Oddometer:
    104
    Location:
    GY
    after searching the forums I could not find an answer, therefore I ask:
    I'm about to replace the clutch in my 2001 KTM 640 ADV. should I buy the original or can I use this one for example :
    http://global.ebay.com/BARNETT_DIRT_DIGGER_CLUTCH_KIT_KTM_620_640_1998-01/170519786823/item
    which costs, almost, half the price.

    Will it last like the original or should I use the original due to better quality?

    If I buy original KTM parts it will cost me between 280 to 310 USD, while using aftermarket like the one from EBAY may cost me around 140 to 150 USD including shipment.
    Thanks.

    http://global.ebay.com/KTM_540_620_625_640_660_SMC_LC4_EBC_clutch_plates/150511697265/item
    this one costs 60 USD.

    http://global.ebay.com/KTM_540_620_625_640_660_LC4_EBC_DRC_clutch_kit_NEW/120593300189/item
    this one is 144 USD.

    Attached Files:

  7. makazica

    makazica Been here awhile

    Joined:
    May 17, 2008
    Oddometer:
    754
    Location:
    Zagreb, Croatia
    My 2c:

    I consider the clutch one of the toughest parts of the LC4 engine.
    Haw many km/miles did you do on that clutch before time came to change it?

    If you opt for cheaper parts be ready to change it again sooner than if you put OEM in.....

    Cheers!

    M.
  8. erdsh

    erdsh KTM 640 Adventure

    Joined:
    Mar 14, 2008
    Oddometer:
    104
    Location:
    GY
    over 50K Km.
    the clutch recently started showing signes of slippery under heavy use.
  9. Droptarotter

    Droptarotter Long timer

    Joined:
    Jul 11, 2007
    Oddometer:
    1,312
    Location:
    Cloverdale
    Hi guys;
    I recently purchased a 2007 640 Adventure off of one of the other inmates here.......I have not had any time to ride it yet, I still need to get it inspected so I can insure it in Canada.
    I'd post pictures, but I have a hell of a time posting photo's here.
    I am looking forward to getting on it once I have completed a few repairs.

    Cheers
  10. motomark39

    motomark39 I reckon so

    Joined:
    Feb 28, 2007
    Oddometer:
    1,072
    Location:
    Odenville, Alabama
    The complete kit would be the way to go. ($144) EBC makes quality stuff.
    KTM doesn't actually make clutch plates, they buy them from a supplier.
    I have used several aftermarket clutches over the years with no problems, but I have always used products from companies that are known to sell quality stuff. You have a picture of a Barnett kit. The Barnett kits used to come with heavy duty springs and would make the clutch pull very stiff.
  11. Zecatfish

    Zecatfish XTique Rider

    Joined:
    Dec 30, 2006
    Oddometer:
    7,927
    Location:
    Arkansas USA
    I replaced the one in mine with EBC too :thumb


    Can you pull the head and cylinder without pulling the engine from the frame?
    I guess I'm going to toss a set of rings in the paint shaker to stop the oil burning for now.

    I found some cheap pannier bags that fit like they was make for an LC4.
    [​IMG]

    My little write up on them when I set em on the XT350, really to big for it, but do fit the well.
    http://armusings.blogspot.com/2011/03/panniers-xt350.html
  12. VxZeroKnots

    VxZeroKnots Long timer

    Joined:
    Jun 5, 2008
    Oddometer:
    2,969
    Location:
    Durango CO
    email them to me and i'll post them

    Got em, Nice ride! Tell us about the bike!

    <a href="https://picasaweb.google.com/lh/photo/lBDxTJpZ6mgL426_mRI4FQ?feat=embedwebsite"><img src="https://lh6.googleusercontent.com/_n28XXaMDMhs/TYyP9fYUeHI/AAAAAAAABv4/SzWZvN8-gMc/s800/IMGP2376.JPG" height="800" width="423" /></a>

    <a href="https://picasaweb.google.com/lh/photo/oVafaarumnfXaXrRI6AL3Q?feat=embedwebsite"><img src="https://lh3.googleusercontent.com/_n28XXaMDMhs/TYyQBbWNHrI/AAAAAAAABv8/iVoLE3dsfe0/s800/IMGP2377.JPG" height="600" width="800" /></a>
  13. Low594

    Low594 Adventuring Creep

    Joined:
    Oct 28, 2008
    Oddometer:
    1,162
    Location:
    Oakland, CA
    Yes, you can pull the jug with the motor in the frame. Check the threads in the jug for the head bolts, mine were tearing themselves out after roughly 7,000 miles!
  14. Zecatfish

    Zecatfish XTique Rider

    Joined:
    Dec 30, 2006
    Oddometer:
    7,927
    Location:
    Arkansas USA
    Thanks for the reply and the little bit of info.
    I will check the studs too.
  15. VxZeroKnots

    VxZeroKnots Long timer

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    Oddometer:
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    Location:
    Durango CO
    tell us about the bike!
  16. mxchamp

    mxchamp Registered Lurker

    Joined:
    Mar 27, 2005
    Oddometer:
    1,775
    Location:
    The corn state,11 curves in 318 miles (Iafalls IA)
    Tell me more about where to get them nice auxiliary lights and that fancy mount for them.

    TIA
  17. VxZeroKnots

    VxZeroKnots Long timer

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    Oddometer:
    2,969
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    Durango CO
    +1 :clap
  18. Cupid

    Cupid Adventure Poser

    Joined:
    Oct 9, 2010
    Oddometer:
    38
    Location:
    DMV Area
    Just got a Hero. Since we don't have a wind screen that you can see through, what do you guys use for mounting options?

    Pics would be perfect.
  19. Hayden#69

    Hayden#69 Been here awhile

    Joined:
    Dec 16, 2005
    Oddometer:
    255
    Location:
    Wichita Ks
    Top or side of your helmet.
  20. erdsh

    erdsh KTM 640 Adventure

    Joined:
    Mar 14, 2008
    Oddometer:
    104
    Location:
    GY
    which clutch did you use?
    I had a very bad experience with the EBC on my yamaha TT600 several years ago.
    I was thinking about the barnette.
    Do you happned to know which is the 'original' KTM clutch?
    Thanks.