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help fitting a seat unit

This is a discussion on help fitting a seat unit within the Technical forums, part of the Caferacer.net Forums category; can anyone help me with fitting this single seat fibreglass seat unit to my 1972 yamaha YDS7 before i start chopping and grinding? does anyone ...

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  1. #1
    Official Site Vendor ukTony's Avatar
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    help fitting a seat unit

    can anyone help me with fitting this single seat fibreglass seat unit to my 1972 yamaha YDS7 before i start chopping and grinding? does anyone have any pics they could show me of there fitments? what brackets and where?
    thanks , Tony


    'old hooligan...

  2. #2
    Senior Member Geeto67's Avatar
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    throw that seat away and Start over.

    that seat is too small. take a measurement of the frame and start shopping for a new seat.
    Normally I would recommend chopping the frame aft of the shocks but now that I see it up close and notice that it is two pressed steel halves welded together to mount the shocks I don't advise it as it looks structural and unless you are willing to weld and feel like relocating the shocks that seat ain't gonna cut it.

    airtech lists measurements on their site:

    http://www.airtech-streamlining.com/...eats_round.htm

    you may want to have a look around. With that frame design I would recommend a box seat:
    http://www.airtech-streamlining.com/...eseats_box.htm

    Classic Cycle city (or classic city cycle I can never remember) sells bolt on hinges (mostly for cb750s but they are adaptable to whatever bike you own) that might work for your application if you wanted the seat to open up.

    http://www.classiccyclecity.com/

    http://cgi.ebay.com/ebaymotors/NEW-H...A1%7C72%3A1171
    Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.
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  3. #3
    Official Site Vendor ukTony's Avatar
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    too late man i already started chopping! i do intend to weld strengthen plaes in though, now the lugs are off the frame the seat sits nicely over the tubes, il start a resto thread shortly. chhers.
    'old hooligan...

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  5. #4
    Senior Member Geeto67's Avatar
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    well you did not say whether you could weld or not, and that makes a big difference.


    how much do you weigh? will that seat hold you or are you going to need to reinforce it? do you still want it to hinge?
    Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.
    - Samuel Beckett
    A tool is just an opportunity with a handle
    - Kevin Kelly

  6. #5
    Official Site Vendor ukTony's Avatar
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    oh yeah i can do the lot, but im not too proud to ask for help and advice
    i built a few choppers in my time using stock frames so im used to cutting and welding etc.
    'old hooligan...

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