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DKW's Midnight Maxim 750

Discussion in 'XJ Technical Chat' started by DKW, Sep 1, 2017.

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  1. DKW

    DKW Member

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    I want to use only internal parts (gearbox, oil pump, etc) and swap the conection rods, cylinders, pistons, camshafts, cylinders head, with the 750 parts.
     
    DKW, Feb 12, 2018
    #51
  2. DKW

    DKW Member

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    Still painting different parts... the motorcycle will be fully painted in matte black and glossy black, I gave up the gold paint at this stage.
    paint3.jpg paint4.jpg paint5.jpg

    I'm looking for a pair of original mufflers, lowest price & lowest shipping... :(
     
    DKW, Feb 17, 2018
    #52
  3. DKW

    DKW Member

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    I found this exhaust system, except for chrome, is the right option?
    maxim exhaust.jpg
     
    DKW, Feb 18, 2018
    #53
  4. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    That is for a 750 maxim
     
    hogfiddles, Feb 18, 2018
    #54
  5. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The air-cooled one.
     
    k-moe, Feb 18, 2018
    #55
  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Hold on....
    @DKW I moved your posts into a separate thread. The one you piggybacked onto was about an entirely different bike. You have gone from showing us what you bought, to having a restoration thread. Congratulations!
     
    Last edited: Feb 18, 2018
    k-moe, Feb 18, 2018
    #56
    DKW likes this.
  7. DKW

    DKW Member

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    Photo of the day:
    paint6.jpg
    The fork is almost ready, with "new" tubes from a XV500 fork.
    Meantime the other "money eater" VX800:
    enduro-chopper.jpg
     
    DKW, Feb 19, 2018
    #57
  8. cruiserlover

    cruiserlover Active Member

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    where did you get controls for the 535.ebay?
     
    cruiserlover, Feb 20, 2018
    #58
  9. cruiserlover

    cruiserlover Active Member

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    I sent you a request for the forward controls,but on second thought they scare me too.
     
    cruiserlover, Feb 20, 2018
    #59
  10. DKW

    DKW Member

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    DKW, Feb 20, 2018
    #60
  11. cruiserlover

    cruiserlover Active Member

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    ok.dumb question, but where is romania?
     
    cruiserlover, Feb 20, 2018
    #61
  12. DKW

    DKW Member

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    o_O East Europe.
     
    DKW, Feb 20, 2018
    #62
  13. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Just north of Bulgaria.
     
    k-moe, Feb 20, 2018
    #63
    chacal likes this.
  14. DKW

    DKW Member

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    More concludent.
    map.png
     
    DKW, Feb 24, 2018
    #64
  15. DKW

    DKW Member

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    brakes.jpg

    The rear fender (from a VN750), for mock-up.
    mock-up.jpg
     
    DKW, Mar 1, 2018
    #65
  16. DKW

    DKW Member

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    Awaiting the cranckases.
    frame.jpg
    frame1.jpg
     
    DKW, Mar 6, 2018
    #66
  17. Simmy

    Simmy Well-Known Member

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    did you paint the brake discs?
     
    Simmy, Mar 6, 2018
    #67
  18. DKW

    DKW Member

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    Yes, but the brake path will be cleaned using brake pads.
     
    DKW, Mar 7, 2018
    #68
  19. DKW

    DKW Member

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    Dismantling the engine, first step. 20180315_192747.jpg 20180315_192757.jpg
     
    DKW, Mar 15, 2018
    #69
  20. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Gumming up the pads in the process. Hit the rotors with a scotchbrite pad before you put them on the bike.
     
    k-moe, Mar 15, 2018
    #70
  21. DKW

    DKW Member

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    I know, but i'll use the old brake pads for this.

    Meantime the crankcases has arrived, they come from United States via United Kingdom,just because many sellers from US don't ship to Romania.
    . crankcases1.jpg crankcases2.jpg crankcases3.jpg
    I found a good exhaust system in US, but the shipping cost is huge...
    Now i'm lookin' for cylinders, pistons & rods
     
    DKW, Mar 23, 2018
    #71
  22. DKW

    DKW Member

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    The engine is fully dismantled, now i'm looking for all the ball bearings, plane bearings and gaskets. I found ball bearings replacement here in Romania, at Koyo factory, but the plane bearings will be a problem.
    strip2.jpg strip3.jpg strip1.jpg
     
    DKW, Apr 7, 2018
    #72
  23. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    None of the ball bearings should need replacing, unless the engine has been sitting in a lake.
    The clearances for ball bearing housings is standardized at 0.000 mm. The cases actually grab hen a bit to hold them in place.

    The plain bearings can be a trick to get, since Yamaha no longer offers them. Chacal has a bit more knolwedge than I on what other bearings fit corectly.
     
    Last edited: Apr 7, 2018
    k-moe, Apr 7, 2018
    #73
  24. DKW

    DKW Member

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    Meantime, on the way, the new toy. maxim x.png

    The Midnight project is in standby, for a while.
     
    DKW, Jul 25, 2018
    #74
  25. MattiThundrrr

    MattiThundrrr Not a guru

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    Ooh, an x! That looks nice.
     
    MattiThundrrr, Jul 25, 2018
    #75
  26. DKW

    DKW Member

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    Yep, including this bike, i have 5 Yamahas in my family. :D
     
    DKW, Jul 26, 2018
    #76
  27. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Only 5?
     
    hogfiddles, Jul 26, 2018
    #77
  28. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Do recorders and keyboards count?
     
    k-moe, Jul 26, 2018
    #78
    hogfiddles likes this.
  29. MattiThundrrr

    MattiThundrrr Not a guru

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    I have a Kawasaki keyboard.
     
    MattiThundrrr, Jul 26, 2018
    #79
  30. Simmy

    Simmy Well-Known Member

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    I have a Kawasaki tennis racket
     
    Simmy, Jul 27, 2018
    #80
  31. turpentyne

    turpentyne Active Member

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    I wonder if there's a Kawa liquor company out there making sake ... it seems like a missed opportunity, to me.
     
    turpentyne, Jul 27, 2018
    #81
  32. DKW

    DKW Member

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    Yep, i'm a poor man....:(
     
    DKW, Jul 27, 2018
    #82
  33. DKW

    DKW Member

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    ''New'' bike, new issues. The Maxim X have electrical troubles... Where i could finf the electric diagram?
     
    DKW, Oct 28, 2018
    #83
  34. DKW

    DKW Member

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    Because of a medical condition all the bikes are parked, waiting for the spring season. The Midnight is in the same stage like last year, i didn't find the parts i need for the engine, 750 cc engine is like unicorn, here in east europe... maybe a swap with 900 cc?
    garage.jpg
     
    DKW, Nov 25, 2019
    #84
  35. Timbox

    Timbox Well-Known Member

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    What is that? 3 BMW's and thee V twins? Wish I could guess better, maybe a Suzuki and a Honda are two of them, the 3ed I can't tell.
     
    Timbox, Nov 26, 2019
    #85
  36. DKW

    DKW Member

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    Not all the bikes from this photo are mine, and not all my bikes are in this photo. The Midnight is in the top left corner of photo. :)

    3 BMW, 2 XS 400, 1 Midnight, 1 VX800, 1 DragStar400, 1 Rebel250.
     
    DKW, Nov 26, 2019
    #86
    kerriskandiesinc likes this.
  37. kerriskandiesinc

    kerriskandiesinc Active Member

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    Suzuki VX800..almost bought one of those to despatch on, very underrated, if I remember.....
     
    kerriskandiesinc, Nov 27, 2019
    #87
  38. DKW

    DKW Member

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    Yes, very reliable and a good tourer.
     
    DKW, Dec 3, 2019
    #88
  39. DKW

    DKW Member

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    Btw, which is the part number for oem handlebar, Midnight Maxim?
     
    DKW, Dec 3, 2019
    #89
  40. DKW

    DKW Member

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    I just made a bargain, some parts from a XJ900F, full exhaust, complete handlebars & and upper yoke, brake pump, clutch lever and turning signals (+ complete fairings for other project, XJ900) all these parts at of cost of approximative 200$.
    The exhaust ends will be shortened, to fit on the bike, upper yoke will be swapped and i'll put the XJ900 yoke & handlebars.
    And, due to ''lockdown'', small works at my Maxim X, some electrical issues.

    IMG_20200422_182527984_HDR.jpg IMG_20200422_190424953.jpg
     
    DKW, May 22, 2020
    #90
  41. DKW

    DKW Member

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    The exhaust system will be sandblasted and painted in black, the handlebars will be slightly modified to be more wide by adding some extra parts, 5-8 cm on each end.
    IMG_20200524_175822299.jpg IMG_20200524_175830987.jpg IMG_20200524_175838254.jpg IMG_20200524_175843782.jpg IMG_20200524_175848952.jpg

    I still need the 750 engine parts...
     
    DKW, May 24, 2020
    #91
  42. DKW

    DKW Member

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    ... and the barn find, XJ900 Seca, but i have no ideea when i'll finish the old project MM750 (still seaching for engine parts) IMG_20221025_183158167.jpg
     
    DKW, Jan 16, 2023
    #92
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  43. DKW

    DKW Member

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    Hello! I'm back, after a long medical recovery...
    My Maxim X have a strange electrical problem, sometime, when i use the turning signals the engine stalls. I need a wiring diagram for 750 Maxim X '86, Canada & US edition.
    The electrical harness and conectors seems to be ok, also the switches from handlebar.
     

    Attached Files:

    DKW, Apr 17, 2024
    #93
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