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Thread: Jim's ZXR750 Build

  1. #221
    ASF Gold Full Member Yella's Avatar
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    How did you go with exhaust.?
    'Originally Posted by rock hard stock swingarms are for blokes with balls!! ha ha'



    I would love to become a professional whistler. I'm pretty amazing at it now, but I wanna get, like, even better. Make my living out of it.

    Yella turbo ZX7 Winner VCM Best Streetfighter and SOS encouragement award NFR 2011
    http://www.streetfighters.com.au/for...-s-ZX7-project

  2. #222
    ASF Premium Full Member JimZXR's Avatar
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    Removed one of the baffle tubes and matting, retightened the header clamps and gave it a run out and it was much better but still lacking power and torque so gonna remove all of the baffles and see how it goes. Failing that I'll change back to my old system and if it is back to normal with that on I'll have to find another can to make that system look how I want or shorten the can I have.

  3. #223
    ASF Premium Full Member JimZXR's Avatar
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    Turned out to be a HT lead; fixed that and all good again!

  4. #224
    ASF Premium Full Member JimZXR's Avatar
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  5. #225
    Tyre destroying, mad bastard menace
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    now that's a cool bike to hoon around on :-)
    zip ties rule lol

  6. #226
    Bloke with a smaller stick rod185651's Avatar
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    I love the look of this build

    I rode to Ben's once with the entire subframe on the wretched held together with zip ties.
    Last edited by rod185651; 09-01-2017 at 06:01 PM.

  7. #227
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    That's bang on Jim. Any plans on making that permanent?

  8. #228
    ASF Standard Full Member chinski's Avatar
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    fuck yeah man shorter tail is the goods, looking sweet !!

  9. #229
    ASF Premium Full Member JimZXR's Avatar
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    Thanks for the big ups, glad it's taking shape well now.

    Plan now is to get the subframe welded solid by a mate then use a plastic welding kit and a load of spare ABS I've got from the experiments to seal the gaps up then reinforce the whole thing from the inside with epoxy and wire mesh/fibreglass sheet.

    No doubt It'll need a load more shaping with a heat gun before I'm happy with the shape and fit but overall I'm in a good place to move forward now I think.

    Mechanical wise I'm still gonna persist with trying to bring the DB of the exhaust down using baffles and exhaust matt without killing the power too much.

    Belly pan and undertray will need to wait until the tail is sorted but they're on the shelf waiting for some attention.

    After that it'll hopefully be time for paint or even plasti-dip. Not sure if I'll go Green or Black yet but gonna try to leave the mask paint well alone.

  10. #230
    Bloke with the stick Gix11's Avatar
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    Good stuff Jim.
    Can I just give you one piece of advice with the tail mate? You mentioned welding and fibreglass in the same sentence, which would indicate to me you might be thinking of bonding plastic together with fibreglass inserts. Can I just save you hours of time and disappointment by letting you know that the two do not play well together. I learnt the lesson the hard way a LONG time ago. Although they set hard and look great when done, within about 2 weeks you will start to see cracks before it starts to fall apart. The stress and strains of a moving vehicle break the two apart as they were never really meant to bond. Works fine on a static piece of art, but not a motorcycle!

  11. #231
    Weekend Warrior
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    Agreed, plastic welding is the only way to go.

    I have this kit and can recommend it. Useful for all sorts of repairs.

    https://www.amazon.com/Polyvance-570.../dp/B00IEX6NME


  12. #232
    Bloke with a smaller stick rod185651's Avatar
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    As everyone above have stated, plastic and fiberglass do NOT bond. Plastic welding is the go.

  13. #233
    ASF Premium Full Member JimZXR's Avatar
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    OK, thanks for the heads up guys, Plastic welding it is.

    I may still use some exposure on the inside to add strength to the weld or is that a no-no also?

  14. #234
    Bloke with the stick Gix11's Avatar
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    Exposure? Did you mean Epoxy? Either way, stick with the same medium and build it up with plastic behind if you want more strength.

    A proper weld done right should be enough though.


  15. #235
    ASF Premium Full Member JimZXR's Avatar
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    Will do.

    Mrs bought me this kit from Bunnings to start the welding off with so hopefully it'll do the job.

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  16. #236
    Bloke with a smaller stick rod185651's Avatar
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    in the past, I've used bits of old cutoffs and a soldering iron with successful results

  17. #237
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    Me too.
    more titanium than my bike

  18. #238
    Bloke with a smaller stick rod185651's Avatar
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    One of the benefits of building a fighter heaps of plastic left over to use for welding

  19. #239
    Pizza delivery boy/girl
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    That thing looks slick! I like it. Always likely the semi retro look of those things!

  20. #240
    ASF Premium Full Member JimZXR's Avatar
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    Definitely have plenty of plastic left but gonna try to use most of it to make the remaining panels but any off cuts will definitely be melted on!

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