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  1. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I wish this had worked for me when I did it. Maybe I'm not heavy enough of a rider....
  2. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Can't lie. Have had my own frustrations. I wanted a v-max from the first time I watched a dyno tune video on youtube and heard that V4 note. I rode XS1100s before the v-max (and XS650 before that) and really liked them. I did a carb swap on an old XS11 and installed some Kawasaki Ninja carbs...
  3. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Haha. Why didn't I think of that. Of course! Especially during turns and bumps!
  4. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Yes, great reminder, thanks. My idea was to weld a strip along the springs to prevent the springs from compressing. I had mentioned some posts back about making some square angle sections, but as I looked at the shocks, the shock mounts are offset, so a simple 13 inch length of angle with a...
  5. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Very possible. On front-wheel-drive cars, I have always tried to rotate the rims on the wheel hubs so that the wheel balance weights are at an opposite axis angle as the wheel on the opposing side to try and smooth out the front end wheel balance. A softer motorcycle tire should actually stay...
  6. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    For some of us, it has to be. For others, one thing will solve the problem and they declare that the source of all speed wobbles/instability is the thing that resolved it for that person. This can make things very confusing to a person who is just casually working on the problem. If there...
  7. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    The nice thing is that I can always just go get another bike. I don't feel obligated to resolve this issue, I have enjoyed the process. Learned a ton along the way and have heard from a lot of great guys on this forum. Additionally, I have indeed resolved some issues I wouldn't have otherwise...
  8. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I tore down the front end again (removal of handlebars and upper triple tree bridge) with the intention on inspecting and testing and re-torquing the steering head bearings. I couldn't see any bearing issues or other anomalies. I reassembled and torqued the head bearings too loose on purpose...
  9. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Thanks for that Steve! I've seen that schematic before but must have seen a different one or missed that part. I took a pic of my fork internals a couple of pages back. Maybe parts 7/31 and 5/29 are promising. It looks like they do call it a metal slide and I looked up the image of that part...
  10. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    That sounds great, Brian. 110 is great!
  11. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    Certainly the throttle can induce all kinds of issues, as well as ham-fisting the clutch and brake. I've been paying much closer attention lately to how I operate the controls. I really think if a few owners can do the tests I did in my videos, I could get some baseline idea. I am beginning...
  12. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I did some rudimentary checking last night, as well as right-side frame bolted joints. I didn't find anything unordinary upon cursory inspection.
  13. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    https://www.vmaxforum.net/threads/high-speed-wobble.29380/post-451841 I read this entire thread.... Last message was an idea about springy handlebars and this made me consider that on my bike. Never thought of that as a possibility but the OP hasn't posted to the thread since.... hope he's...
  14. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I raised the front end about a 0.33 inch and did a ride test. If it made any difference, it wasn't much... hard to tell. The bike tracks true and straight but is still hyper sensitive above 65. I don't dare ride it faster than 95 in case I sneeze... lol I did notice at 65 when shaking the...
  15. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    There are some interesting thoughts for sure in that document you posted. Reading the thought process regarding the replacement of the rubber washer is definitely interesting. I would love to know why the engineers included it. Could it be a way to reduce vibration into the bars or to try to...
  16. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I have also come across the idea regarding the offset centerline on the wheels of shaft-driven bikes. Some sources online have stated that what matters is that the rear wheel centerline conforms to the frame centerline, and that it can appear to be offset but really isn't. These sources...
  17. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I have considered that as well. It couldn't possibly make the wobble worse. Frame braces perhaps as well, but the ones I have seen are for some reason ridiculously expensive. Testing a solid rear would be a very inexpensive test. It should be as simple as drilling a couple of holes through 2...
  18. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    I've noticed exactly the same thing. Our bikes must be siblings.... I wonder how the wobble would feel if one replaced the rear suspension with a couple of pieces of solid angle iron. No, not for the long term, just for testing the speed wobble. Imagine if a solid rear made the wobble...
  19. Shuriken

    V-Max Speed Wobble (ran it up to 115mph and...)

    The 412 suspension I have also only has preload and no damping adjustments. I'm beginning to think the vmx1200 was designed for 250lb riders and up. The steering head is firmly planted when 2 up and the bike feels entirely different and I'm well below that... When 2 up, everything feels fine...
  20. Shuriken

    What did you do to your Vmax today? Part 2

    Pro painter you are. do you wet sand?
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