2019 A model fork harshness - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 19 (permalink) Old 09-30-2020, 09:13 AM Thread Starter
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Question 2019 A model fork harshness

Hello forum members,
I've searched suspension questions and answers and didn't see an answer to my complaint/concern. I'm on my 3rd FJR, the last one being a 2013. I'm experiencing teeth shattering front end ubruptness when I encounter road expansion joints. I have spent the entire summer making changes to the preload, compression damping and rebound damping. Extreme changes make little difference. Is anyone else experiencing this? This is definitely spoiling my enjoyment of an otherwise perfect bike. Do you ES owners find the ride quality to be smooth on lousy road surfaces ?
Any suggestions or answers will be appreciated. By the way my Illinois dealer says Yamaha has discontinued the A model as of 21.
Thank you, Cyclechris
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post #2 of 19 (permalink) Old 09-30-2020, 09:46 AM
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Hi CycleChris,

So sorry to hear that! I can't answer to your issue, as I am on a 2006 model A with ABS.

Orion is fantastic, on all surfaces. I wonder if there is a failure of the forks themselves, like there is not enough oil in them, from the factory?

And what about tire pressure? Is it to the spec for the bike?

I had to show a friend, that the tire pressure specification on the head tube is the pressure you are supposed to use, not the Max for the tire on its sidewall!

After we got that straight, his bike was so much more rideable!

I am just guessing now, but have you pulled the negative battery cable, to let the ECU reset? Wonder if it got scrogged, and can't make the necessary adjustments to the ES?

Now I am intrigued...

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post #3 of 19 (permalink) Old 09-30-2020, 10:37 AM
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My research nearly 5 years ago suggested the A and ES ride exactly the same but for the ES having electronic controls allowing adjustments on the fly.

Plenty of advise here as to finding sane default clicker and preload settings. One caution I would add is to not force the clicker once it has hit bottom. Some wedge the internal needle valve in its seat and no longer adjust.
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post #4 of 19 (permalink) Old 09-30-2020, 11:51 AM
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Have you noticed this since day one, or did it just develop this harshness condition? Mileage? Do you know if aftermarket shock springs were installed?



2016 and up FJR-A's have a different cartridge in the right fork... not different in valving necessarily but a different assembly procedure when it comes to putting the top fork cap back on.....

On prior models we ran the cartridge nut down, and put on the cap, then ran the nut back up to secure it.
On 2016-up, one must run the nut down 13mm (I recommend no more than that), then put the top cap back on and snug the nut to the cap. This sets the distance allowable for the internal damping wire to do its thing with the rebound valve. If the top cap is installed too low, this effectively makes the damping wire push the rebound valve fully closed.... no rebound damping at all.

Kinda sounds like that's what you're experiencing. Not hard at all to loosen the top triple clamp, remove the top cap, set the nut correctly and reinstall the cap. A jack under the headers will enable you to let the bike down to compress the fork internals so you can work with them. Jack it back up when you need to put the (assembled) cap back into the fork.
I would check that first and try it. Let us know if that improves it and if not, we'll go elsewhere...
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post #5 of 19 (permalink) Old 09-30-2020, 11:56 AM
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It could easily be junk in the oil clogging the valve orifices.
But more info is required .

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post #6 of 19 (permalink) Old 09-30-2020, 01:44 PM
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I think the best thing for you to do is let me borrow it this weekend, so I do a thorough analysis of your situation.

(Guys in Texas, Meet me in Fredericksburg on Saturday, and we can "analyze" CycleChris' bike! LOL)

I am thinking maybe the Willow City Loop?

'06 FJR1300A - Orion the Hunter

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Old Corral

1977 Yamaha YZ-80 - Dirty Girl
1978 Yamaha YZ-125 - Dirt in the Shirt
1976 Yamaha XS500 - Old Blue
1980 Yamaha XS850SG - Twisted Triple or "TT"
1980 Yamaha XS11SG - Scorpion
1998 Kawasaki Voyager XII - Kermit

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post #7 of 19 (permalink) Old 09-30-2020, 02:03 PM Thread Starter
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I should have my dealer check this out.

Thanks for the replies.
Since my previous FJR's did not exhibit this phenomenon I'll have my dealer check the fork. The bike is still under warranty and this jarring harshness has been since day one.
Cyclechris ..
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post #8 of 19 (permalink) Old 09-30-2020, 03:56 PM
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Quote:
Originally Posted by Cyclechris View Post
Thanks for the replies.
Since my previous FJR's did not exhibit this phenomenon I'll have my dealer check the fork. The bike is still under warranty and this jarring harshness has been since day one.
Cyclechris ..
Chris, yes!! Please do that!!!

And let us know what it was!! I am still intrigued!
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'06 FJR1300A - Orion the Hunter

Greg

Old Corral

1977 Yamaha YZ-80 - Dirty Girl
1978 Yamaha YZ-125 - Dirt in the Shirt
1976 Yamaha XS500 - Old Blue
1980 Yamaha XS850SG - Twisted Triple or "TT"
1980 Yamaha XS11SG - Scorpion
1998 Kawasaki Voyager XII - Kermit

Family Member bikes
1982 Yamaha XJ650J - Whole Lotta Rosie
1982 Yamaha Virago 750 - "V"
2007 Honda CBR600RR - Holy S&!T
2015 Kawasaki Vulcan S - Tiny Spock
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post #9 of 19 (permalink) Old 09-30-2020, 07:21 PM
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Kool. Warranty... I'm interested to see what they find.
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post #10 of 19 (permalink) Old 09-30-2020, 07:22 PM
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This.

Quote:
Originally Posted by N4HHE View Post
My research nearly 5 years ago suggested the A and ES ride exactly the same but for the ES having electronic controls allowing adjustments on the fly.
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