Nighthawk and the light of day

Discussion in 'Some Assembly Required' started by Foxed101, Aug 1, 2015.

  1. Foxed101

    Foxed101 Monkeywrench

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    I caught the modifyeritis.
    Got myself an '83 CB650SC Nighthawk.
    image.jpg

    Why? Because I read that all old CB's can be turned into cafe racers easily.

    And then I met the nay-sayers:dunno
    Nighthawk be bad bike to mod...

    So I give up...



    Not!
    image.jpg

    Tackle the thing that can't be done.
    #1
  2. Foxed101

    Foxed101 Monkeywrench

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    Actually, this project has been WIP for quit some time now.
    After taking the thing appart I saw the raw beauty of all the original parts.
    Chopped up and reassembled that is:lol3

    So decided to go "dual-sport" on it.
    Build a 2-1 tracker/cafe racer.
    Fully adjustible clip-ons moved down and low.
    Tank swap, seat & rear swap and Bob 's your uncle.
    Tracker to cafe racer in the time it would take a Formula 1 team to change tires.
    #2
  3. Foxed101

    Foxed101 Monkeywrench

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    Tracker
    image.jpg

    Cafe racer
    image.jpg
    #3
    redhandmoto likes this.
  4. RobbH

    RobbH n00b

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    I honestly don't know what the definition of a tracker is in Holland, but it's beautiful!!!
    #4
  5. Foxed101

    Foxed101 Monkeywrench

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    Thanks!

    The inspiration for the street tracker came from these:

    image.jpg
    I see potential

    image.jpg
    Nice, but my bike's fat

    image.jpg
    That's more like it

    image.jpg
    That's what you get when you Take it to the street!

    Lets monkey around with this!
    #5
    RobbH likes this.
  6. Foxed101

    Foxed101 Monkeywrench

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    Good to see a fellow n00b give the first reply.

    For the vets out there: there's fresh meat here to pour your wisdom over.:dhorse


    Owe you a defenition of tracker from the monkey dictionary

    Tracker:
    trackā€²er n.
    1. Motorcycle you can pour any amount of stupid in. Inspired on dirt trackers and about any other thing on two wheels.
    2. Someone who tracks down game
    Eg. A tracker is great for a tracker to hunt down zebra's in Manhattan
    #6
  7. RobbH

    RobbH n00b

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    Thanks for the pictures and clarification! It looks to me a Tracker is similar to a cross between a Bobber and a Cafe Racer....
    #7
  8. Foxed101

    Foxed101 Monkeywrench

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    I decided to make the tracker version using as many original parts as I could.

    That is including the wheels.

    Then I did a mock-up of the back.
    And it looked all wrong.
    Couldn't put my finger to it at first.

    Can you spot it?
    image.jpg
    #8
  9. Foxed101

    Foxed101 Monkeywrench

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    The croocked mock-up fuck-up are my monkey hands at work. But it helped me get the picture in my head and the real life possibilities sorted.

    The odd thing I suddenly noticed has been there since it rolled from the Honda assembly belt.

    Notice how the right shock has way more clearance from the tire than the left shock has?
    #9
  10. motoOzarks

    motoOzarks motoMonstor

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    That's for all the high speed left drifts the cafe racers are required to do.
    #10
  11. Foxed101

    Foxed101 Monkeywrench

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    Point!:hide

    Too bad I won't be hitting any ovals soon.

    Nearest I'll get is them is the roundabouts we got here.
    But those are more like chicanes.
    Bank right, bank left, bank right. Let it rip!
    image.jpg

    They can be used for offroading as well:flug
    image.jpg
    #11
  12. tinwelp

    tinwelp Professional Idiot

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    I think I'd be concerned over the twisted sub-frame first, then sort out the wheel offset issue, if it still exists...

    Cheers... Paul
    #12
  13. Foxed101

    Foxed101 Monkeywrench

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    The subframe is still schootin' straight. :gun1
    Hacksawed it a bit shorter, that's all.
    Then balanced the rear parts on it to have a look see.

    The offset seemed to me like an "inborn" thing.
    Shafts don't need to be centered they just are where they are.
    But I could be wrong:mulie

    Is this the way a Nighthawk rear should look?
    Or do I have an issue to adress?

    Allready ordered a NT650V rearwheel since it's the only wider rear wheel that fits a Nighthawk as far as I now.
    #13
  14. tinwelp

    tinwelp Professional Idiot

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    Foxed,
    are you sure about the subframe? It may just be an odd angle of the photo, but to me everything at the back end does not look to be aligned with the rear wheel or the tank. If you strip it to the bare subframe and lay a straight-edge horizontally across the tubes, it should be absolutely parallel with the rear axle. I'm assuming the swing-arm is also straight of course, but that too may be a bit squiffy. Pull it out and measure it: again the pivot and the axle should be parallel

    As for the wheel offset, I disagree. If all of the parts are matching, by which I mean from the same model bike, the tyre centre must be at the centre-line of the frame. If it's not, there's something horribly wrong... and you may be a bit surprised with the handling of the machine when it's finished!

    As for the NTV wheel, I know nothing, but I'd advise measuring it carefully before fitting to be sure.

    Cheers... Paul
    #14
  15. Foxed101

    Foxed101 Monkeywrench

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    Thanks for the usefull comments.
    I'll be wrenching again next week.
    As the project is at my dad's.
    Who is gracious enough to provide space, tools and knowledge.
    Will take due measurements:y0!

    I made a testdrive on it prior to buying.
    It tracked straight. Took my hands of the handlebars at speed. And it went straight. Just when the speed dropped a bit it gives a big headshake. Blamed that on the forks riding so high in the clamps. Never rode anything chopper-like before.
    #15
  16. Foxed101

    Foxed101 Monkeywrench

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    :clap image.jpg On the operating table stage 1
    #16
  17. Foxed101

    Foxed101 Monkeywrench

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    Stage 2
    Rear frame extended
    image.jpg
    #17
  18. Foxed101

    Foxed101 Monkeywrench

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    All hail the Honda Deauville!
    Charity bike and donor to orpan bikes.
    image.jpg

    It gave the Nighthawk it's broader, centre trailing rear wheel. (The Honda CX also benefits from Deauville parts)

    image.jpg
    The swap was fairly easy. The Nighthawk axle is narrower.
    So it needs new bearing and spacers. Luckely, the shaft-side bearing is slightly narrower. Just the amount the rear wheel needs to centre itself.

    The rear shocks are in the make.
    An old MX mate of my dad has his own suspension shop.
    A family business called PROMAX-RACING.
    He is going to assemble YSS shocks to match the bike.
    Black and aluminum short-eyed units with weaker springs to accomodate the steeper shock angle.

    image.jpg


    It is all coming together nicely.
    All I have te pour in is blood, sweat, time and money :knary
    #18
  19. Foxed101

    Foxed101 Monkeywrench

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    Now we have the front to adress:thumb

    Btw. I gave up on the 2-1 idea. It's gonna be a street tracker.
    That poses enough challenge.

    This decision opened up the road te modern wheels.
    So now I need a front wheel to compliment the style of the rear.

    Bought a complete front end out of a 1989 FZ600.
    Everything except the wheel itself.
    image.jpg
    Hoping it was a direct swap:pynd
    Oh,the iddle hope...:loco

    What do do now?

    The options:
    1. Keep the original forks and swap a FZR750 '88 wheel in (direct swap)
    image.jpg

    2. Keep original forks and swap a '91 cbr 600 wheel in (will need mods as the rim is wider
    image.jpg

    3. Adapt steering stem, put in closed ball bearings to fit the FZ fork and put in either an '88 FZR750 wheel or a '91 CBR 600 wheel
    image.jpg

    Any advice on the subject?
    I'm all ears :ear
    #19
  20. DustyRags

    DustyRags Idiot

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    Just found this- definitely a good idea going 1-for-1, bikes that can be swapped quick like that exist, but you're making sacrifices in handling to get the looks right. Purpose-build it and you can go full-bore.

    I think the last wheel would look best with the one you already have in the rear, but the second one would look best in the tracker style- those often have spoked or snowflake wheels.
    #20