2016 1300A Wobble between 40-50 mph - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 6 (permalink) Old 09-24-2020, 02:16 PM Thread Starter
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2016 1300A Wobble between 40-50 mph

I just replaced my tires and it's wobble when decelerate or with cruse control 40-50 mph.

Most common people say the head steering bearing is little loose. Should I try just start to replace the ball bearing with the tapered bearing and see how ut goes?

It's around 30K miles on the bike.
Thank you.
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post #2 of 6 (permalink) Old 09-24-2020, 02:55 PM
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Oh boy, a real can of worms there. Dozens of threads on this subject and what to do about it. For me, "things" like different tires and suspension settings and the order in which you tighten bolts, etc. were all temporary at best. The only permanent fix for me was tapered roller bearings. Not a hint of a wobble since.


https://www.fjrowners.com/forums/9-f...el-shimmy.html

https://www.fjrowners.com/forums/9-f...-barrings.html

https://www.fjrowners.com/forums/9-f...nd-shakes.html

https://www.fjrowners.com/forums/8-f...ed-wobble.html

https://www.fjrowners.com/forums/8-f...ng-wobble.html

https://www.fjrowners.com/forums/9-f...ring-head.html

https://www.fjrowners.com/forums/15-...ble-weave.html

https://www.fjrowners.com/forums/8-f...ar-wobble.html

https://www.fjrowners.com/forums/8-f...el-shakes.html

https://www.fjrowners.com/forums/9-f...re-torque.html

https://www.fjrowners.com/forums/9-f...-question.html

https://www.fjrowners.com/forums/11-...-bearings.html

https://www.fjrowners.com/forums/9-f...-bearings.html

https://www.fjrowners.com/forums/8-f...-stuff-up.html

https://www.fjrowners.com/forums/9-f...ks-shimmy.html

https://www.fjrowners.com/forums/9-f...nt-wobble.html

https://www.fjrowners.com/forums/15-...ead-shake.html

https://www.fjrowners.com/forums/11-...el-wobble.html

https://www.fjrowners.com/forums/28-...-your-fjr.html

https://www.fjrowners.com/forums/9-f...-bearings.html

https://www.fjrowners.com/forums/9-f...it-wobble.html

https://www.fjrowners.com/forums/9-f...nd-issues.html

https://www.fjrowners.com/forums/9-f...-throttle.html

https://www.fjrowners.com/forums/8-f...-bearings.html

https://www.fjrowners.com/forums/11-...-bearings.html

Russ
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post #3 of 6 (permalink) Old 09-24-2020, 07:18 PM
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A wobble that shows up after a tire change is very unlikely to be related to the steering bearing. Much more likely the the forks got tweaked. Loosen everything, bounce a couple of times on the forks, tighten according to spec. Next most likely issue would be an improperly installed tire or wheel.
Quote:
Originally Posted by Get on the throttle View Post
I just replaced my tires and it's wobble when decelerate or with cruse control 40-50 mph.

Most common people say the head steering bearing is little loose. Should I try just start to replace the ball bearing with the tapered bearing and see how ut goes?

It's around 30K miles on the bike.
Thank you.

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post #4 of 6 (permalink) Old 09-24-2020, 09:25 PM
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By all means try the easy things first. Helps to swallow the effort and expense of replacing the bearings.

However, anything that disturbs the delicate balance of mechanical resonance is more than capable of inducing the wobble. The tire is the source of the energy for wobble. Good luck if the old was off the resonant frequency.

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post #5 of 6 (permalink) Old 09-24-2020, 10:42 PM
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If the bike did not have the steering head torque checked at the 600 mile service, I'd highly recommend doing that before declaring you have steering bearing issues. All FJR's should have this check in the first few hundred miles.
To add, IMHO, the final torque of 13 is a bit low, should be more like 15-18 ft. lbs. All my Hondas specify 18 and a resistance check of the handlebars (which we did in the old days as routine).
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post #6 of 6 (permalink) Old 09-25-2020, 12:32 AM
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Quote:
Originally Posted by RaYzerman View Post
If the bike did not have the steering head torque checked at the 600 mile service, I'd highly recommend doing that before declaring you have steering bearing issues. All FJR's should have this check in the first few hundred miles.
To add, IMHO, the final torque of 13 is a bit low, should be more like 15-18 ft. lbs. All my Hondas specify 18 and a resistance check of the handlebars (which we did in the old days as routine).
It should really be checked with a torque wrench and not front wheel yanked on center stand. However almost no one reports fixing by reseting the bearing preload once the wobble has appeared.

Ultimately it doesn't matter much because ball bearings are too weak for this application. A friend's 2018 was surprisingly taut at 4000 miles but had the dreaded wobble on OE BT023. We replaced the bearings and the wobble disappeared even with the nasty tire.

2018 F-150 XLT SuperCab 4x4 2.7L
2016 FJR1300A
2016 Beta 430 RS
2016 Subaru Outback
2013 Tesla Model S 85
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