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Thread: Z1900 back from the grave.

  1. #1
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    Z1900 back from the grave.

    Bought this off Ebay a few months back, it T boned a car turning right while overtaking,and sat in a shed for 27 years.
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    Just about everything was fucked, accept the back wheel. engine had two snapped valves, I found a gear tooth in the sump, frame was fucked forks fucked frontwheel fucked, taco speedo seat tank side covers tail peace blinkers fucked fucked fucked.
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    The frame was too stuffed to straighten so I decided to chop all the bent bits off.
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    Fuck! not much left, should I rebuild or buy another frame?
    Well I'd never built a frame before and this one was nearly half done, so I bought some chrome moly, made a pipe bender from scrap I had around the house, studied up on frame geometry and got started.
    Used a sheet of 12mm thick steel for a base, made up a few jigs (sorry, forgot to take pics) my lathe was too small so I got the local engineering shop to turn up the head stock then started bending cutting and welding,
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    So far so good. everything lines up spot on.








  2. #2
    Tyre destroying, mad bastard menace
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    Mmmnnnnnn now this is my style top job mark

  3. #3
    Bloke with the stick Gix11's Avatar
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    Come on Supercharger, don't be shy. Keep the photos coming!

  4. #4
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    What he said ^^^^

  5. #5
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    Now that's a rebuild!

  6. #6
    Bloke with a smaller stick
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    Top job Mark.
    "It's the eighties and I'm down with the ladies"

  7. #7
    Power Hungry, Law Disregarder
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    Looks Great Mark, I'm with Si..... where are the other pics :-)

  8. #8
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    Did a bit more to the frame, tank mount, coils mount, rear foot pegs mounts and gusset under the steering head.
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    Just need to weld the steering stop to the head then off to get sand blasted and power coated.

  9. #9
    Power Hungry, Law Disregarder
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    Im amazed that you have been able to resurret that frame!!! Amazing work Mark.

  10. #10
    ASF Depleted Uranium Member Large's Avatar
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    That's pretty impressive work Mark.

  11. #11
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    Thanks for the comments guys, but the proof's in the pudding, I'll be happy if it doesn't spit me off in a big tank slapper.
    Here's a few more pics of what else is going on the bike.
    Shimmed the new disks to line up with the callipers, the rim is off a SV650 and the forks are ZZR1200 so a fair bit of spacing to do there, the speedo drive is off a 86 gsxr1100.

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    The same deal with the swing arm with shimming, which is off an 01 GXSR600, the back wheel is Bandit 1200 as is the calliper hanger and drag link.

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  12. #12
    Tyre destroying, mad bastard menace
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    stop it mark I will need to clean up soon........real bike building imo
    what probs with rego do you think you will have
    and what filler wire did you use for the 4130 ?
    Really good use of lesser used better value later model factory parts, while still keeping the clasicc vibe I love it.......

  13. #13
    Tyre destroying, mad bastard menace
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    love it Mark..good job and long live the Z

  14. #14
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    Ozzy,I bought the cromoly off RaceTec and used the rods theyrecommended, it has ER 70S-2 stamped on the ends.
    And no more questions about rego, I don't want to dampen my enthusiasm.

  15. #15
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    Supersteel!

  16. #16
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    Quote Originally Posted by Supercharger_Mark View Post
    Ozzy,I bought the cromoly off RaceTec and used the rods theyrecommended, it has ER 70S-2 stamped on the ends.
    And no more questions about rego, I don't want to dampen my enthusiasm.
    that pain I feel only to well my brother......
    er 70s-2 is the spec that keeps comeing up with the people in the know that I have spoken to
    racetec is where i was thinking of useing but there is a few other places its stocked well
    I just shouted myself a jd2 square bender model 32 for this propose, paid for it with scrap money and designing a paying job that uses 3/4 s/s tube bent- by luck should have it the stars alined and with just my time and some small cash the $1500 paid for its self.
    what did you use to bend it, it can take no small amount of force :-)

  17. #17
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    is it me but in the second pic of finished frame front on the headstock looks to be of ??

  18. #18
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    (jd2 square bender model 32) Yeh, I wish I had one of them, I made up a very basic bender and yes it was very hard to bend, so hard in fact, reluctantly, I needed to heat it and then let it cool slowly.
    Albi, Yeh, but on the jig it lined up well, hard to tell from a photo.
    Last edited by Supercharger_Mark; 29-08-2013 at 06:26 PM.

  19. #19
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    Got some new bits ready to go.
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  20. #20
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    im just starting in this but by the look of it the section you prob had to heat is trianglelated by the stright bar anyway, at the end of the day 4130 has got to be over x2 the strengh of the mild it replaced so while its not what Id do there is never really much chance that its going to be a problem. I have plans afoot to build the frame jig to end all jigs, problem is that its going to cost upwards of 1k and take me 3 mths to build it and thats if the place sells me their old milling machine bed they have........
    thats not a easy task you took on there and if it was me id be chuffed with the result


    as you can tell I kind of love that paint

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