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Thread: Help dating a Yamaha YB100 please

  1. #1
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    16th April 2012 - 18:35
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    Help dating a Yamaha YB100 please

    I have recently acquired an old Yamaha YB100 and am trying to accurately date it. It has no Japanese VIN number but it's frame and engine numbers are matching and are: L2-071822 Can anyone please help me date this bike are point me towards a website that has the information? Cheers.

  2. #2
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    17th April 2011 - 14:39
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    I have a Yamaha AG17G that I may consider letting out on a date.She was born in 79, so I suppose she's old enough by now.
    For a man is a slave to whatever has mastered him. Keep an open mind, just dont let your brains fall out.

  3. #3
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    Or if you think they are not right for each other, you could look here. http://www.cyclepedia.com/yamaha-mot...dentification/
    For a man is a slave to whatever has mastered him. Keep an open mind, just dont let your brains fall out.

  4. #4
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    16th April 2012 - 18:35
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    LOL.. Thanks for that Unstuck. The trouble is the bike has no VIN number, just the frame and engine number. I struck this with another YB100 I own and Yamaha Australasia were able to send through a chart showing dates on it but this bike is pre their records as their charts starts at 1970 with frame number 100000. I heard there is a website in Zambia or some other random country that has really good info on dating the bikes and I wonder if anyone knows the link to it as I can't remember it's name.

  5. #5
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    26th July 2005 - 12:12
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    Sounds like it's not a YB-100 but a YL-2 which predates them.

    Do you have a pic of it?


    "...you meet the weirdest people riding a Guzzi !!..."

  6. #6
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    I had some good tips on what to do on your first date with it, but its seems, thats not what you mean?

  7. #7
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    Quote Originally Posted by dunedinite View Post
    I have recently acquired an old Yamaha YB100 and am trying to accurately date it. It has no Japanese VIN number but it's frame and engine numbers are matching and are: L2-071822 Can anyone please help me date this bike are point me towards a website that has the information? Cheers.
    67-71 for a YB100 79-81/82-86 for anYB100E and there's even a P model,but get a parts person to run your number through their system


    http://www.wemoto.com/bikes/yamaha/yb_100/67_-_71/

    http://www.wemoto.com/bikes/yamaha/yb_100_e/79-81/

    http://www.wemoto.com/bikes/yamaha/yb_100_e/87-94/

    http://www.wemoto.com/bikes/yamaha/yb_100_p/76-78/

  8. #8
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    You should be able to find it here
    http://www.classicyams.com/spare-par...menumbers.html

  9. #9
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    Quote Originally Posted by unstuck View Post
    I have a Yamaha AG17G that I may consider letting out on a date.She was born in 79, so I suppose she's old enough by now.
    Will it put out?

  10. #10
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    Quote Originally Posted by Haggis2 View Post
    Will it put out?
    They putt out regularly. You are in!
    Only a Rat can win a Rat Race!

  11. #11
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    16th April 2012 - 18:35
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    Heres a quick pic I took of it. Instruments are just a speedo with no plastic-ware around it. The side covers are curved around the wheel arch (Unlike my other YB-100 which is straight). I had a look at the sites that have been posted and still cannot find a matching serial number range. This is getting really frustrating...lol.
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  12. #12
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    I still think it looks more like a YL-2.

    http://dayerses.com/yamaha-yl-2.html


    "...you meet the weirdest people riding a Guzzi !!..."

  13. #13
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    16th April 2012 - 18:35
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    I think you may be right as it is identical to one in the photos on the page you posted. I still haven't been able to find its serial number falling within a number range to give is a definite date, but at least it narrows down the years it could be.
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  14. #14
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    http://www.transmic.net/fichiers/modelcodes_yam.htm

    Try this, I found another one somewere with paint codes. Will post it if I find it again
    Dale Kerrigan: If there's anything Dad loved more than serenity, it was a big two stroke engine on full throttle!

  15. #15
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    http://home.comcast.net/~todwatts/Files/Model_codes.pdf

    In this list 166 model says L2 1966
    Dale Kerrigan: If there's anything Dad loved more than serenity, it was a big two stroke engine on full throttle!

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