XR400 Four - Skunkworks Special

Discussion in 'Some Assembly Required' started by Pezz_gs, Aug 19, 2009.

  1. Pezz_gs

    Pezz_gs Cant ride for crap

    Joined:
    Nov 13, 2004
    Oddometer:
    3,849
    Location:
    Sydney Skunkworks
    Yep that’s right I’m building me a little 4 cylinder adventure bike.
    <o:p></o:p>
    I am organising a fundraiser for the Down Syndrome Association of NSW called:

    Scrapheap Adventure Ride 2010<o:p></o:p>

    [​IMG]

    Raising Money for Down Syndrome Association of NSW​







    Ride to: Wanaaring <o:p></o:p>
    <o:p></o:p>
    When: Easter Saturday - April 3, 2010 <o:p></o:p>
    <o:p></o:p>
    Rules:<o:p></o:p>
    Bike for less than $1000.00.
    Can be any road registered motorcycle.
    You are allowed to spend additional sums on the bike to make it run and roadworthy as all machines participating must be registered.<o:p></o:p>
    You can modify your bikes too :)
    It costs $100.00 to enter paid directly to DSANSW.
    You can raise additional funds through sponsorship of your ride.
    (Pay cents per Kilometer)
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    [​IMG]
    Above is the donor bike.
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    A mate, Shane, give me this little beauty for $0.00. Thanks Buddy
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    I want to splice on a XR front end, wheel and swing arm rear wheel.
    Still wondering what fuel tank, seat and guards to run. Need to build it as cheap as possible. I will not be butchering this bike as will be able to return it to CB400 Four at the end if I wanted too.
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    When I first looked at it, it is very small. And quite light. I will keep posting as I progress. <o:p></o:p><o:p>
    </o:p>
    I had an old KTM muffer I had laying around in the garage <o:p></o:p>
    <o:p></o:p>
    [​IMG]<o:p></o:p>
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    and some old KTM Tank Seat and Guard. Bars will be a bit hard to turn.<o:p></o:p>
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    [​IMG]<o:p></o:p>
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    [​IMG]<o:p></o:p>
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    Looks too modern and losing that classic look. Let try a R80G/S Single seat??<o:p></o:p>
    <o:p></o:p>
    [​IMG]<o:p></o:p>
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    There will be lots of trying and looking and binning.<o:p></o:p>
    <o:p></o:p>
    I have a set of alloy Krauser pannier and topbox frames somewhere in the BMW parts in the shed and will probably use them with plastic gerrycan panniers. Plus a home made topbox.

    OldDog is building up and old TS250 which is below and tHEtREV is coming with his RZ350 Dirtbike.

    [​IMG]

    So if anyone has some old XR bits I would greatly appreciate your assistance:norton
    <o:p></o:p>
    <o:p></o:p>
    #1
  2. carmima

    carmima All Orange :-)

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    this'll be worth watching - good on ya pezz
    #2
  3. viz

    viz I Ride Ms Piggy

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    Ummm would my FJ qualify? Got it for free, though had to spend a quid to get it back up to scratch...

    viz
    #3
  4. Pezz_gs

    Pezz_gs Cant ride for crap

    Joined:
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    viz,

    The idea is to get as many old bikes out of shed and back on the road for a bit of fun and a good cause.
    So YES the FJ would qualify, would like to see what you do with it. do they make a 160mm wide knobbie :D
    #4
  5. Pezz_gs

    Pezz_gs Cant ride for crap

    Joined:
    Nov 13, 2004
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    Been doing some measuring around the rear end.

    Anyone have a XR who can measure the swing arm for me?

    The width of the swing arm at the pivot is 200mm.

    The 400's swingarm length is around 450mm, how long is an XR swing arm?

    Noticed the Redline on this bike is 10,000rpm :eek1
    #5
  6. carmima

    carmima All Orange :-)

    Joined:
    Apr 2, 2008
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    2,955
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    Northern Rivers, NSW
    sounds like it'll make a great hill climber :thumb :huh
    #6
  7. Matt

    Matt Dirt Virgin

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    Apr 11, 2007
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    Newtown,Sydney
    This is going to get interesting.

    I might just start looking around for a banger.

    :lurk
    #7
  8. Pezz_gs

    Pezz_gs Cant ride for crap

    Joined:
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    Something similar out of Italy, about the 18 second mark

    <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/LsEwG2D31Hg&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/LsEwG2D31Hg&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
    #8
  9. redneckdan

    redneckdan Hold my beer & watch this

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    Somewhere on da Iron Range.
    Pezz, man, yer not helping..... I want so badly to stuff a 500cc ninja mill into my KLR650....but my wife would kill me. I do have an XR250 frame sans engine....think a ninja 500 engine would make an old XR scoot?:evil
    #9
  10. OldDog

    OldDog aka Hugh Jarse

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    Mudgee, Australia
    Perry, have you been over-medicating again?

    :rofl
    #10
  11. Pezz_gs

    Pezz_gs Cant ride for crap

    Joined:
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    Na mate but you should smell the stale fuel in the tank . . .

    Some intersting CB400 Four Facts apart from the 10,000 Red Line
    • 408cc's 51mm bore and 50mm stroke
    • 4 x 20mm Piston valve Carburetors
    • Maximum power 37HP @ 8500rpm
    • 6 speed gearbox
    • Dry weight 170kgs.
    The dry weight should come down a a few kg's
    #11
  12. viz

    viz I Ride Ms Piggy

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    I think I am going to be dead in the water with that one :(

    Besides I have only just got in roadworthy condition, and rideable.

    Oh well.

    viz
    #12
  13. davorallyfan

    davorallyfan Commonist

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    Capitalist
    [​IMG]
    #13
  14. eldavo

    eldavo Been here awhile

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    Perth, Western Australia
    Seems everyone will love you on that bike, the Italian bystanders turned off his fuel tap and put the sidestand down for him.
    #14
  15. Mototrans

    Mototrans Been here awhile

    Joined:
    Mar 15, 2006
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    686
    Location:
    Sydney West
    Have you seen what that crazy kid has been up to lately..., he's had some involvement with this.. [​IMG]
    #15
  16. oziexplorer

    oziexplorer fugarewe tribe member

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    Perth, West Oz

    WOW
    #16
  17. theMISSIONARY

    theMISSIONARY hunting and riding!!

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    I had an old Magazine around here some place But in it was a 750/4 with PE250 Suspension tank guards etc put on
    it was only really any good in straight lines but hey why not:D
    #17
  18. mcfear

    mcfear now known as many things

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    who the hell knows these days :D
    that sounds like an awesome ride.

    i got an old 1974 CB250 twin road bike. got it for free.

    also got a tt350 or ttr350 or something. it was free too. both run, but not well.

    will see how i go with time off.
    #18
  19. davorallyfan

    davorallyfan Commonist

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    Yep I think I saw this when SS did my suspension in Fyshwick ACT

    looked evil - it had a seat and tank :scratch - I had no camera.

    Got nice things done to my old girl at the time
    [​IMG]
    #19
  20. Thumpstress

    Thumpstress Gone to Paradise

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    Mt. Warning - Stone Island
    Bloody unreal....go ya alchemists! :clap:lurk
    #20