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  • Advice needed bike feels weird

    Okay so after getting the bike back together I haven’t had a whole lot of seat time, just a couple times to work and back and I little around town. Today coming home from work I had it up over 70 and started getting a weird vibration/bouncy feeling. I had noticed a little of it on deceleration around town but it was very minor and the bike seemed smooth up to 65. But I had to get on it today passing those slower drivers who speed up in passing lanes(oh how I hate that) and when I hit 70 it started to shake and bounce. It wasn’t like an uncontrollable issue but it Definitely took me from relaxing ride to nervous. It felt like the tires were not balanced and that’s the way I’m leaning but hoping you guys could throw some advice/ideas out.

    This is what I’ve done to the bike.

    1. New tires front and rear Michelin Commanders II’s with new tubes
    2. New brake pads front and rear
    3. New brake rotor on rear.
    4. Installed Roadwing
    5. Added a new chopped trunk

    I did not mess with the adjustment screws on rear wheel. I had the local Yamaha shop mount the tires which my wife dropped off on her lunch and picked up on her way home.

    This issue was not present prior to work being done.

  • #2
    sounds like a wheel balance issue to me.
    2000 Roadstar 1600 - BAK, Pumpless, Curt's manifold, Mikuni HSR42 Freedom Combat Pipes Jumbo Strong bags, PPG 'HellFire' Paint.

    Comment


    • #3
      Did you reinstall the 4” spacer inside the rear wheel hub? Is one of the shock mount welds broken? Have you checked to see if the tires seated well on the rims? How were the tires balanced? Remove the balance weights and install Ride On or Dyna Beads. Remove half the tire pressure and roll it a few yards to reseat the tires on the rims.

      Comment


      • Ahodge75
        Ahodge75 commented
        Editing a comment
        Spacers reinstalled. I didn’t notice anything wrong with the shock mounts when I looked at them but to be honest didn’t really inspect them just looked them over. Tires looked good didn’t see any issue with them not seated properly. Don’t know how they were balanced when I called the shop service was already gone for the day. I will look up Ride on or Dyna beads. Thanks

      • fastjohnny
        fastjohnny commented
        Editing a comment
        In my opinion Ride On is superior to Dyna Beads.

    • #4
      What Shores said and also, are you still running stock fork springs and fluid? If so, make sure you have some preload on the Roadwing?

      Comment


      • Ahodge75
        Ahodge75 commented
        Editing a comment
        I am running stock fork spring as far as I know. I don’t believe PO changed them out. Also I have failed the flop test which I will need to fix

    • #5
      I think you answered your own question, check the balance.......... If that doesn't do it then you will need to look deeper, but I doubt you have a shock issue if it was ok before.........
      not all those who wander are lost......

      Comment


      • #6
        Ck front sprocket too

        Comment


        • Duke
          Duke commented
          Editing a comment
          What brainiac said; check the front sprocket too.

        • Ahodge75
          Ahodge75 commented
          Editing a comment
          Ok stupid question what am I checking the front sprocket for

        • fastjohnny
          fastjohnny commented
          Editing a comment
          You're checking the front sprocket to make sure the nut is tight......some riders (not me) have had issues with the nut coming loose.

      • #7
        I had the same problem once!
         

        Comment


        • Ahodge75
          Ahodge75 commented
          Editing a comment
          Luckily it is not that bad...lol

      • #8
        Like Shores said about tire seating to the rim.
        When I installed the Michelins on my bike, they were very hard to get them to bead up and seat on the rim.
        I had to put more Lube on the tire bead and rim, then aired up to 55psi to get them to seat.

        Comment


        • #9
          I recommend the Ride-On balancing beads. I run them in my tube tires and it's smooth sailing to 100 mph. I know my neck bearings are bad, 58K miles and they are the originals, but still it's smooth.


          Comment


          • Horsehammerr
            Horsehammerr commented
            Editing a comment
            I just changed out my 106,000 mile neck bearings , which I could have just cleaned and Greased , but had the new ones here anyway. Now I think I'm having a Starter Relay defunk.

          • fastjohnny
            fastjohnny commented
            Editing a comment
            FPB, Ride on is a (semi) liquid...not beads. I've used it with the last 4 sets of tires and love it. The guy that mounts my tires for me likes it too, now. It's awesome stuff!

        • #10
          Originally posted by Father Pobasturd View Post
          I recommend the Ride-On balancing beads. I run them in my tube tires and it's smooth sailing to 100 mph. I know my neck bearings are bad, 58K miles and they are the originals, but still it's smooth.


          Your memory is really slipping. Ride On is a liquid. Dyna Beads are the small ceramic beads.

          Comment


          • #11
            How many on here are running dyna beads?

            Comment


            • Spydr
              Spydr commented
              Editing a comment
              I've used Dyna beads for the last 50K miles.
              Between tire changes I forget that that there's anything different than when I had balance weights on.
              The tires run true & smooth. No shimmy, no wobble.

          • #12
            Originally posted by Ahodge75 View Post
            How many on here are running dyna beads?
            Have in past. They’re great. Switched to Ride On since I’m running tubes and it gives some puncture protection.

            Comment


            • Ahodge75
              Ahodge75 commented
              Editing a comment
              How do they compare?

          • #13
            Originally posted by Ahodge75 View Post
            Ok stupid question what am I checking the front sprocket for
            Make sure the nut is tight. Seems a loose nut would have a different symptom than what you are experiencing.

            Comment


            • Duke
              Duke commented
              Editing a comment
              When the front sprocket becomes loose, it could cause strange things to happen. Checking that nut wouldn't hurt, you just never know.

            • Ahodge75
              Ahodge75 commented
              Editing a comment
              Okay I’ll check that thanks

          • #14
            Originally posted by Ahodge75 View Post
            How do they compare?
            Both balance extremely smooth and keep balancing even as the tires wear. I’ll never use weights again.

            Comment


            • Ahodge75
              Ahodge75 commented
              Editing a comment
              Sounds like ride on with the extra puncture protection with everything else being pretty equal might be the way to go.

          • #15
            You definitely want the RideOn. And it doesn't hurt to put a little extra if you have some left over in the bottle.

            Comment


            • Ahodge75
              Ahodge75 commented
              Editing a comment
              Okay that’s pretty cool

          • #16
            I have used both. Rear tire picked up a nail while riding across Florida when using Dyna beads. Switched to Ride-on. Can’t say one balanced better than other. Picked up another nail and i didn’t know it till checking tires for wear.

            Comment


            • #17
              Mine was doing the same thing at one time. It would shake a little around 70 and if you were going around 40 and lift your hands off the bars as it would slowing down it would get a bad wobble. I tightened the front steering nut and that took care of it.

              Comment

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