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  1. #1
    Senior Member
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    Aug 2010
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    As title, really, has anyone replaced the stock twin carbs with say a single SU carb - or any other, for that matter? I understand it has been done by at least one trike builder in the UK, but details are thin on the ground. Why do it? spares, simplicity (once done!!), performance characteristics maybe?
    Just an opinion, please don't shoot me if it doesn't coincide with yours............

  2. #2
    Senior Member murrayf's Avatar
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    Apr 2011
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    Lexington NC
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    i have used 34mm mikunis on some hp cx500s and on 650s i have used both round slides and flat side models the flat sides



    you have to make you own intakes
    GET AN OIL FILTER ADAPTER

    Order The Quick Build Exhaust Pipes


    Way to many bikes to maintain this list LOL !!!!

    email me at murray at murrayscarbs.com

  3. #3
    Senior Member Reg in Bristol's Avatar
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    ON a bike you have a bit of a limitation with the frame spine

    in terms of working space, but on your JZR you may have more wiggle room

    If you can fab up a manifold, I'm thinking Mini carb?

    As for results, who knows?

    A single SU will be simpler than fiddling with carb balances air cut off valves and all that

    how about a twin choke Weber?
    I have started to resurrect my site at
    http://tinkrin.netau.net/index.html

  4. #4
    Senior Member murrayf's Avatar
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    just a word



    i have built a couple of experimental single carb intakes for a 650 and a couple of 500s the big problem is runner length and carb icing



    so if you have high humidity you have to insulate and heat the runners with a water jacket (i used a tube tacked to the runners



    and plumbed it to the cooling system that worked the best



    i have tried a single su carb off a mgb worked ok



    a single webber did ok as well but expensive to buy venturis for and other parts



    the best was a single 40mm mikuni carb in fact same as this



    http://www.ebay.com/itm/MIKUNI-CARBU...d4fbc8&vxp=mtr



    it was simple parts easy to get and worked well i got the cable choke conversion for it



    it started well and ran good
    GET AN OIL FILTER ADAPTER

    Order The Quick Build Exhaust Pipes


    Way to many bikes to maintain this list LOL !!!!

    email me at murray at murrayscarbs.com

  5. #5
    Senior Member Reg in Bristol's Avatar
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    Got any pics Murray?

    I'd be interested to see that
    I have started to resurrect my site at
    http://tinkrin.netau.net/index.html

  6. #6
    Senior Member murrayf's Avatar
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    Apr 2011
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    Lexington NC
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    will try to dig some up it was years ago but i have them on one of my hard drives lol
    GET AN OIL FILTER ADAPTER

    Order The Quick Build Exhaust Pipes


    Way to many bikes to maintain this list LOL !!!!

    email me at murray at murrayscarbs.com

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