The XR400 Thread

Discussion in 'Thumpers' started by Hayduke, Jan 16, 2008.

  1. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Things on the handle bar are a bit tight, then for the left hand side mirror placement, purchased a clamp with the 10 mm thread that replaces the original on the perch. :-)
    XR400R 83.jpg
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  2. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Back to the drawing board ...
    Today was finally trying the gas tank and clearances I realized that had to make some modifications ... turn signals were touching the tank and things were way too tight ...
    One way to make more room was to increase the size of the steering stops. Welding or working on the frame is not an option at the moment, then the next simple fix was to drill and tap the stop at the lower triple clamp and add a bolt to limit the turning radius a bit. If anyone wonders is a 4 mm .70 thread. :-)
    Also on the spare wheel changed bearings / seals and next will install a tire to go and hopefully ride this weekend! :happay
    When turning the handlebar saw the decompressor moving, even trying to work with the cable was not happy about the way was working, unfortunately I was not completely satisfied with the perch mounted de-compressor lever... went back to the stock unit until I get another perch. :fpalm

    XR400R 85.jpg XR400R 86.jpg XR400R 84.jpg
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  3. shinyribs

    shinyribs Thumpers for life

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    You will always see the decomp lever at the head move around some when your move the bars back and forth, just have enough slack to not accidentally activate it. I tried the small, clutch perch ones also. Way not enough leverage in those.
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  4. Cabrito

    Cabrito On the mend Supporter

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    I had the same problem running my 5.8G tank with the turn signals so I went with the Tusk hand guards with the integrated turn signal.
    [​IMG]

    I would be hesitant to add anything to the steering stops because sometimes even very minor tweaks like that could throw things off just enough to be annoying. You might find that your turning radius is noticeably limited by that. I've had some cabling routed incorrectly before and was surprised how much it effected the steering when I was trying to turn around on a tight trail or in a tight space.

    Some guys on the XR4 disconnect the de-comp lever as it's barely needed on some of them. I rarely use mine.
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  5. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Great advice guys!
    I am pedal to the metal to see if I can go testing / riding this weekend ... wohooooooooooooo! :rofl
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  6. Al-X

    Al-X Been here awhile

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    Nifty headlight you've got there.
  7. Stretch67

    Stretch67 Mad Scientist Supporter

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    I have Rox risers and tall CR-bend bars on my bike (I'm 6'6"), so I had to get all new cables four inches longer, including the De-Comp. Every time I turned left, the engine died because the De-Comp would open. :lol3

    Motion Pro will fabricate new cables at any length you desire...

    https://www.motionpro.com/c/cables

    Go ahead and order extras as well.
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  8. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Thanks Strecht67.
    I did not go the higher bars yet although the way things are at the moment I don't think moving up much is possible, original cables are just right.:-)
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  9. Al-X

    Al-X Been here awhile

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    I also did Rox swivel raisers and CR high bends.

    My issue was more to get space in the cabin, as I'm weighing 115kgs, so I wanted the bars to move forward rather than higher.

    Did not have to do anything to the cables, it allowed for enough movement but I did move my decomp lever a bit nearer to the centre as one do not really need it as much as on my 600R.

    But I got both so I'm happy.
    View attachment 3268434
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  10. Al-X

    Al-X Been here awhile

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    Chaps, help me out here.

    In South Africa we don't really have a big choice on XR400 accessories.

    Does anyone have an idea if a XR650L long range tank will work on a 2004 XR400R?
    View attachment 3269090
  11. Cabrito

    Cabrito On the mend Supporter

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    The big 5.8g Acerbis tank will, but they use different mounting hardware. My big tank was from a friend who removed it from his 650L, and I was able to get a set of 400 hardware directly from Acerbis.
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  12. Al-X

    Al-X Been here awhile

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    Thank you Cabrito.

    Then I'll start looking for a 600R/650L tank.
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  13. Cabrito

    Cabrito On the mend Supporter

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    This tank came off of a 650L
    It's much older and slightly different from the newer ones. The hardware kit from Acerbis worked great.
    [​IMG]

    This one was purchased some time around 2016. I was going to buy it from my friend, but decided I like the retro look of my old white one.
    [​IMG]
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  14. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Well mates, bike is ready to rumble this weekend! :happay
    Need to make sure lights and general modes work and take a beating.
    On order flush mounted front turn signals ... :beer
    XR400R 87.jpg
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  15. Al-X

    Al-X Been here awhile

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    I like the white, it will disrupt the too much red a bit!!!
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  16. Al-X

    Al-X Been here awhile

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    Quick question to you clever okes:

    Living at 1650m above sea level.
    Running ceramic coated OEM headers, OEM zorst. I see the airbox is opened already.

    Will the 160/60 jetting work? Could've been done already, will check next week.

    Much appreciated
  17. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    Here is my tuning at the time ...
    Hope it helps.
    My own tuning 05/05/21

    Here we go ... fine tuning the 2004 XR400R these are the parameters, calculated to be / ride in a range from 800 to 6500 ft. altitude.

    Needle jet 16012-KCY-681 and clip in the slot 3 (middle). (Not stock on CA models)

    58 idle jet. (With rubber extension to pick up fuel deeper)

    155 main jet.

    1-1/2 turns out fuel screw.


    :-)
  18. Al-X

    Al-X Been here awhile

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    Shot, gonna try that.

    I guess I'm at 3200ft?
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  19. cmbthumper

    cmbthumper Long timer Supporter

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    Looks killer and with your attention to detail all should be perfect.

    While I don't run a big tank my turn signals are on the mask and no matter the tank I don't think they would interfere. I've run flush before and even high $$ Denali you can't see sh*t. When I did I saw a lot of one finger signals birds at me.

    image.jpeg
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  20. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

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    That is a killer machine! very sharp looks ... man do we love these bikes!
    Unfortunately my choice of fairing does not give me enough room to install them.
    I have to say that on my other bikes and I ride a lot of freeways and city I use my hand signals too ... call me OLD school but helps.
    My golden rule: DO NOT EVER MOVE TO OTHER LINE WITHOUT LOOKING OVER MY SHOULDERS ...
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