The Bigger engine dream
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  1. #1
    Senior Member RisingSun's Avatar
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    I was burning my brain cells thinking of what could I stuff into the TW without going crazy.....In Japan Yamaha makes a SR500 bike and yes 500cc that pretty much bolts up to the TW frame. It looks almost exactly like it too.











    http://i1216.photobucket.com/albums/...0-cimg1959.jpg





    What do you think?

  2. #2
    Senior Member RodneyReed's Avatar
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    No more struggling up hills and in headwinds. The Harley guys would be left way behind at the stoplight. Definitely need to go with a bigger tank.

  3. #3
    Senior Member lizrdbrth's Avatar
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    It needs almost 1 1/2" of offset to the left, as does nearly every engine out there. That big tire has a cost.



    All Yamaha engines, whether 125's or 1000's all have their output shafts ending in roughly the same location because they all have narrow tires and rims.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  5. #4
    Senior Member RisingSun's Avatar
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    Quote Originally Posted by lizrdbrth View Post
    It needs almost 1 1/2" of offset to the left, as does nearly every engine out there. That big tire has a cost.



    All Yamaha engines, whether 125's or 1000's all have their output shafts ending in roughly the same location because they all have narrow tires and rims.
    I heard ya. So now either look for a jack shaft or make one.

  6. #5
    Senior Member RisingSun's Avatar
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    Quote Originally Posted by Rodney View Post
    No more struggling up hills and in headwinds. The Harley guys would be left way behind at the stoplight. Definitely need to go with a bigger tank.
    could go with a sportster tank fabbed up. The stock Yamaha SR500 probably would work as well.

  7. #6
    Senior Member Wheelie Nelson's Avatar
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    i have a sr500 in pieces right now i'm building a custom bike out of. if you have any questions about measurements, i can answer them.



    i have some pictures of it here. i'm waiting on a few things to get rolling on it again.



    My link

  8. #7
    Senior Member RisingSun's Avatar
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    Quote Originally Posted by Wheelie Nelson View Post
    i have a sr500 in pieces right now i'm building a custom bike out of. if you have any questions about measurements, i can answer them.



    i have some pictures of it here. i'm waiting on a few things to get rolling on it again.



    My link
    What the hell those bikes in your shop are awesome. I hope your build comes out good.

  9. #8
    Senior Member lizrdbrth's Avatar
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    Quote Originally Posted by RisingSun View Post
    I heard ya. So now either look for a jack shaft or make one.


    I've finally acheived Motorcycling Nirvana. Which occurs when you've finally thrown enough time and money at similar projects to know well in advance what a worthless item a TW500 will be.



    But good luck on your own journey, pilgrim.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  10. #9
    Member lorddaftbiker's Avatar
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    A TW 500 would make significantly more power, which would require a new suspension to handle that power, which would...might as well just buy another bike for the effort involved and money required. Unless of course, you want to make a stupid and futile gesture, in which case, you can't be blamed .



    -Lorddaftbiker

  11. #10
    Member lorddaftbiker's Avatar
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    A TW 500 would make significantly more power, which would require a new suspension to handle that power, which would...might as well just buy another bike for the effort involved and money required. Unless of course, you want to make a stupid and futile gesture, in which case, you can't be blamed .



    -Lorddaftbiker

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