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41Y low budget caferacer

Discussion in 'XJ Modifications' started by xj750y, Oct 12, 2019.

  1. xj750y

    xj750y New Member

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    Been busy on this bike for a couple of months now. Hardest part was to fit the tank but it worked out.

    Still a lot of work to do.

    Will upload more detailed pictures today.

    a2.jpg
    a3.jpg
    sdfsdf.jpg
    a5.jpg
     
    Last edited: Oct 12, 2019
  2. xj750y

    xj750y New Member

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    This is how I bought the bike

    r1.jpg
     
  3. xj750y

    xj750y New Member

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    Talking about the tank, it was quite a challenge to make it fit.

    1st step: remove the old brackets and weld in new ones
    ta1.jpg

    2nd step: relocate fuel petcock. In the old situation the petcock hit the frame.
    IMG_20190826_180229554.jpg IMG_20190826_195642279.jpg IMG_20190826_205051607.jpg

    3rd step: make it flow with the lines of the bike (i welded in an end-plate on the backside)
    IMG_20190915_122947173.jpg IMG_20190915_122949546.jpg IMG_20190915_170234899.jpg

    Then I painted the whole thing with rattle cans and finished it off with 2k clear coat

    r10.jpg r9.jpg r11.jpg
     
  4. xj750y

    xj750y New Member

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    Some more detailed pictures

    selection of my favourite tools
    r7.jpg

    welded on subframe + seat pan
    IMG_20190926_155745232.jpg
    IMG_20190926_155751713.jpg

    ugly crown plate
    r6.png

    removing all unnecessary metal
    r4.png

    result: flat crown plate
    r5.jpg

    revised front fork and shortened it by 7cm
    r3.jpg
     

    Attached Files:

    Last edited: Oct 12, 2019
    Bix likes this.
  5. jayrodoh

    jayrodoh YimYam Premium Member

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    Looks great! Nice attention to detail.
     
  6. Bix

    Bix Member

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    looks like a beauty!
     
  7. 50gary

    50gary Member

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    I like those wheels
    Cheers, 50gary
     
  8. xj750y

    xj750y New Member

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    Working on the speedo + painted exhaust

    IMG_20191020_123324434.jpg

    IMG_20191018_185403766.jpg

    IMG_20191019_115109276.jpg


    IMG_20191018_190427228.jpg
     
    Bix likes this.
  9. xj750y

    xj750y New Member

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    Sorry for not posting in 100% chronologic order.

    Rebuilt + tuned carburators:

    IMG_20191016_220521867.jpg

    IMG_20191016_215859763.jpg


    Made some plates to cover up the space between the subframe and seat:
    IMG_20191020_190233722.jpg

    Painted the gas tank with rattle cans (€32,- paint job, included 2k clear coat from rattle can)
    IMG_20191005_213124001.jpg

    IMG_20191005_225159326.jpg

    IMG_20191005_230607751.jpg

    IMG_20191006_110508074.jpg

    IMG_20191007_174337952.jpg



    IMG_20191007_174354523.jpg

    IMG_20191007_174357582.jpg

    IMG_20191007_174400772.jpg
     

    Attached Files:

    Last edited: Oct 21, 2019
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  10. a100man

    a100man Well-Known Member

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    Hi, nice job. so far so good. So what was the 'new' tank from - clearly not the original yamaha!
     
  11. xj750y

    xj750y New Member

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    It's a modified Benelli Mojave tank.
     
  12. xj750y

    xj750y New Member

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    So I finished the 'exterior' today.

    Now I'm busy with the wire loom etc.

    IMG_20191107_165519379.jpg

    IMG_20191107_165549613.jpg

    IMG_20191107_165541071.jpg

    IMG_20191107_165525211.jpg

    IMG_20191107_165553377.jpg
     
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  13. Simmy

    Simmy Well-Known Member

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    That looks about as light as you can make a 900.
    How does it run, did you buy a commercial jet kit or trial and error?
    Oops just read back a post, not wired yet. Never mind.
     
  14. xj750y

    xj750y New Member

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    Correct, I am busy with the wiring at the moment!

    The bikes feels 100kg lighter. There is not a lot of room to shave off more weight indeed.

    IMG_20191108_175057480.jpg

    IMG_20191108_153900685.jpg
     
  15. xj750y

    xj750y New Member

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  16. xj750y

    xj750y New Member

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    About the Jets: from experience i enlarged the mains with 10% and the slows with 8%.
     
  17. PavelK313

    PavelK313 Active Member

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    Are you planning on venting rectifier or is it staying completely sealed under the seat? I initially planned on putting mine under the seat as well but then changed my mind due to it needing air flow for cooling.
     
  18. xj750y

    xj750y New Member

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    Please tell me where the air flow is coming from on the stock location.. :)
     
    Last edited: Nov 9, 2019
  19. PavelK313

    PavelK313 Active Member

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    I don’t remember if stock bike had air channeled into stock location but I know for a fact that it wasn’t sealed unlike your set up of electrical area. Btw, I mounded everything except rectifier under the seat as well.
     
  20. xj750y

    xj750y New Member

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    Maybe ill put a computer fan on top of it
     

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