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Thread: GS450 build

  1. #1
    ASF Premium Full Member Bob's Avatar
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    GS450 build

    So Im gonna give a cafe racer build a go. So a not having the best build skills I thought this mite be a nice easy bike to start on. Plus it is gonna end up being for Loz (Mrs bob)

    I picked it up today. Motor turns over but doesnt start. Some electrics work, it will be almost a full restro by the time Im done.


    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  2. #2
    ASF Gold Full Member Yella's Avatar
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    Nice
    '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

  3. #3
    Tyre destroying, mad bastard menace
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    go ard u 2

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    ASF Depleted Uranium Member Large's Avatar
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    I reckon you should put the moteur in the ride on and drop in a gsxr600

  5. #5
    ASF Premium Full Member Bob's Avatar
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    I have wondered what bigger cc twin engine I could get in there.
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  6. #6
    Tyre destroying, mad bastard menace
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    GS 500 or GR 650 either would probably go close to bolting straight in.

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    ASF Standard Full Member Redmohawk's Avatar
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    And big bore the GR650 to 800 with a 270 deg crank !

  8. #8
    Bloke with a smaller stick
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    gs500 turbo ????
    Jesus died for his own sins...NOT MINE !

  9. #9
    Tyre destroying, mad bastard menace
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    GS500 motor will bolt straight in, but the exhaust ports point straight to the frame downtubes.

    You can use the 500 cylinders and pistons with the 450 head for a cheap big bore, or use GR650 block and pistons for a bigger bore (I think it comes up to 527).

    GS Resources has a bunch of details about all these swaps. Those 450 tanks are pretty sort after in the US, just by the way.

  10. #10
    ASF Premium Full Member Bob's Avatar
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    Well today not being at work I did a little bit more to it. Go the electrics sorted more and have started on the carbies. It now has spark and turns over on the starter. Flushed some fresh oil threw it and made shore its got oil pressure as well. If all gos well mite even try and start it by the end of the week.
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  11. #11
    Tyre destroying, mad bastard menace
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    Looks like it might have a bit of a bark too with those copper mufflers.

  12. #12
    ASF Premium Full Member Bob's Avatar
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    Will find out soon Hillsy, looks like someone has welded on a piece of metal pipe. They will be replaced in the future. Took the carbies out today, soaking in a bucket of fuel for the night.
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  13. #13
    ASF Premium Full Member Bob's Avatar
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    Carbie bath

    Looks ok

    Arr shit


    Now do I try start it and see how long it last or pull the head off??
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  14. #14
    Tyre destroying, mad bastard menace
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    Start it, what's the worst that could happen ?

  15. #15
    ASF Premium Full Member Bob's Avatar
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    Quote Originally Posted by K6Thou View Post
    Start it, what's the worst that could happen ?
    hmmm??? Boom!! lol
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  16. #16
    ASF Premium Full Member Bob's Avatar
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    Compression test. One cylinder has 130psi the other has 65 psi. So mot likely a rebuild.
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  17. #17
    ASF Premium Full Member Bob's Avatar
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    Havent had much time on this (the joys of being a dad) but did some more wiring and stirpped it down.




    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  18. #18
    ASF Premium Full Member Bob's Avatar
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    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  19. #19
    ASF Premium Full Member Bob's Avatar
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    So after running it for 20 odd minutes the other day the oil light came on. After letting it cool I checked the oil level and it seemed ok. So today I took the rocket cover off and check that oil was getting to the top


    It seems ok, gave it a few cranks and oil seems to flow. So I decided to do another compression test and now seems to have good compression in the cylinder that was low. It was at 65psi, but now it 140

    Other cylinder is still the same.


    So mabe the motor is ok? Just got to find out why its smoking so much out of the crank case breather.
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

  20. #20
    ASF Premium Full Member Bob's Avatar
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    Ive been busy with the shed. But now that's done back to it. So over the xmas holiday I have started to order parts, need another tank as the original was rusted out and tail/seat unit. Got different bars coming and mufflers on the way too. There will be more bits to come over time as I need them. But did a quick mock up today,


    Hope to do more in the week
    Ladies and Gentelmen, take my advise. "Pull down your pants and slide on the ice."

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