Fj1200 Vibration

[wildfire]

Hello one and all.

So I put my rare wheel back on today after getting a new tire on it and the following just popped in to my head so I thought I would ask you all.

Is the vibration experienced through the handle bars solely found with the 1200 models?.  Is it something to be expected?
I have not ridden for over a month  because of weather but when i was riding I got to say after about 40 minutes or so I was beginning to feel my hands getting numb.

I have put lead shot in the handle bars which helped a little but I think even after doing that an hour of riding would not be enjoyable.

I looked in to the "vibernators" but not sold on them yet. What are your remedies to reduce the vibration?.

Tom

[FJmonkey]

First, I must add that you are in Illinois, your hands getting numb from riding now is likely the cold temperature... Many things can cause added vibration on an '86... First sync the carbs, then make sure your carbs are synced.... Then get back to us... Or you could sell it and get a '91/'92 with rubber mounted engines...

[wildfire]

First, I must add that you are in Illinois, your hands getting numb from riding now is likely the cold temperature... Many things can cause added vibration on an '86... First sync the carbs, then make sure your carbs are synced.... Then get back to us... Or you could sell it and get a '91/'92 with rubber mounted engines...

Ah yes good old Illinois winter weather but I have ridden the bike all summer with the same issue. Its  a 92. The carbs are synched  One of the first things I did when I got the bike and do once a month.  Maybe the rubber mounts have passed their useful life?

[movenon]

I hear what fjmonkey is saying.  On my 1990 syncing the carbs makes a big difference.  There is more to syncing the carbs than just hooking up the tool and do a quick sync.. That last 10% makes a difference. Takes a bit of time and adjusting for the best compromise.  Also I like the foam grips and wear gloves with some padding on the palm.  Another thought relates to how you grip the bars. I try to relax on the grips and adjust the levers so my wrist isn't cocked to much.  Also you can pull, re-lube the engine mounts and re-torque the bolts.  Check for cracks in the frame while you are at it at around all the welded joints. I have seen a few cracked.

All that with the inherent design of the 4 cylinder it will still vibrate some.  I can't say anything about the "vibernators" other than the theory looks good.
George

[FJmonkey]

Ah yes good old Illinois winter weather but I have ridden the bike all summer with the same issue. Its  a 92. The carbs are synched  One of the first things I did when I got the bike and do once a month.  Maybe the rubber mounts have passed their useful life?

Then I think you need to find an '86 owner to test ride... The vibes are more pronounced... I kind of like it... lets me fall a sleep on longer rides...

[wildfire]

Yeah.I am comparing it to a 85 Goldwing so maybe thats part of it. But of all the bikes I have had over 29 years I never felt my hands getting numb. Maybe its age creeping in  :unknown:javascript:void(0);

[FJmonkey]

Yeah.I am comparing it to a 85 Goldwing so maybe thats part of it. But of all the bikes I have had over 29 years I never felt my hands getting numb. Maybe its age creeping in  :unknown:javascript:void(0);

85 Goldwing??? 

[wildfire]

Yeah.I am comparing it to a 85 Goldwing so maybe thats part of it. But of all the bikes I have had over 29 years I never felt my hands getting numb. Maybe its age creeping in  :unknown:javascript:void(0);

85 Goldwing???  

Yup . Is that blasphemy. I could compare it to my 2001 Honda Cr250. Now that is a vibration monster.

[aviationfred]

Its  a 92.  Maybe the rubber mounts have passed their useful life?

Here is a thread on removing the rubber motor mounts to inspect and grease them. A 92' should have nearly no vibration in the handle bars. After you inspect, replace possible bad bushings and grease the mounts and you still have a bit of a buzz in the bars, the RPM vibranators will dampen them away.

http://www.fjowners.com/index.php?topic=3613.0


Fred

[wildfire]

Its  a 92.  Maybe the rubber mounts have passed their useful life?

Here is a thread on removing the rubber motor mounts to inspect and grease them. A 92' should have nearly no vibration in the handle bars. After you inspect, replace possible bad bushings and grease the mounts and you still have a bit of a buzz in the bars, the RPM vibranators will dampen them away.

http://www.fjowners.com/index.php?topic=3613.0


Fred

Thanks Fred. I will check them out during the week. Are  new rubber mounts still available?

[aviationfred]

Here is a link to a parts break down for the '92 frame. From what I can see, the mounts may be obsolete. That is not to say that they are completely unavailable.

If you find that you need the parts, contact Randy at RPM and if there are any hidden away in a small Podunk town Yamaha shop, he will find them.


http://www.partzilla.com/parts/search/Yamaha/Motorcycle/1992/FJ1200D/FRAME/parts.html


Fred

[Harvy]

Its  a 92.  Maybe the rubber mounts have passed their useful life?

Here is a thread on removing the rubber motor mounts to inspect and grease them. A 92' should have nearly no vibration in the handle bars. After you inspect, replace possible bad bushings and grease the mounts and you still have a bit of a buzz in the bars, the RPM vibranators will dampen them away.

http://www.fjowners.com/index.php?topic=3613.0


Fred

Thanks Fred. I will check them out during the week. Are  new rubber mounts still available?

Its not usually the rubber that is the problem..... the bushings that ride in the rubber seize to the shaft and then the mounts are essentially solid.
My personal feeling is that the Vibranators do make some improvement in the high frequency vibes.

Harvy

[Bminder]

When I synched my carbs and greased the motor mounts, it was way smoother. When it hit 3000 rpms it became turbine smooth.

[ken65]

with my 90 model, i experienced exactly the  same, the grip puppies really helped and made it manageable . Ithink the larger diameter of the grip helps aswell. when i synced the carbs it made a noted improvement again.  I borrowed Harvy's vibranators from him for a week or so and i couldn't notice any difference BUT that was just me. Many folks claim success with them.

[ZOA NOM]

Its  a 92.  Maybe the rubber mounts have passed their useful life?

Here is a thread on removing the rubber motor mounts to inspect and grease them. A 92' should have nearly no vibration in the handle bars. After you inspect, replace possible bad bushings and grease the mounts and you still have a bit of a buzz in the bars, the RPM vibranators will dampen them away.

http://www.fjowners.com/index.php?topic=3613.0


Fred

Thanks Fred. I will check them out during the week. Are  new rubber mounts still available?

I just had Randy do mine, and I have NO vibration where I used to experience the numb hands just like you describe. The mounts made all the difference in the world. Nothing was replaced, just removed, cleaned, greased, and reinstalled. 65k miles, and she purrs like a kitten.