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Discussion Starter #1
Hi guys...
I´m new here, just bought a 2006 FJR and it only has 7000 miles on it.
It has been standing for 2 years and I discovered after a short drive that it was leaking forkoil from the left compression adjustment. Not a lot but I really want to fix it. Anyone that knows how to?
And, as I know you all know, Gen 1 has a different kind off adjustment, a screwed in aluminum thing with a brass screw. Gen 2 has, what it looks like, a pressed aluminum socket/sleeve with a brass screw.
Oil seeps out between the brass screw and the socket/sleeve.
Must be a dry o-ring or such in there...
 

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Hi motardus & welcome. I've owned my FJR for 11 years & read a lot on all of the forums, & I've never heard of a fork doing this. My advice, either take the bike to a dealer, or remove the front wheel yourself (easy to do) & then drop out the offending fork & take that to a dealer or suspension specialist. Something is clearly worn out or not doing its job, but very unusual & especially for such low miles. Good luck with it.
 

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Discussion Starter #3
Thnx gainsi... I´ve been to a Yamahadealer/mechanic and he had never seen such a leak and had no idea how to fix it except change the fork :-((
Next will be a suspension specialist.
Indeed a unusual problem but am I the only one that have this?
 

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It could possibly be overfilled. Pull out the forks and drain them. Measure how much came out. I've never seen oil leak out of the adjuster on any bike I've ever had.
 

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Discussion Starter #5
I´ve never seen this before either. And this is bike nr 50-something...
Very strange but I will take the forks out and check them thoroughly
 

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Just a thought Motardus,
Are you 100% certain that what you see is fork fluid and not brake fluid? Not trying to me a smart-ass..... but over the past few years, several folks have made the same assumption, only later to find a loose banjo bolt or leak near the caliper and dripping onto the fork.

Just an idea.....
 

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Discussion Starter #8
A technician at Yamaha told me that I have to get a new outer tube since the compression adjuster is pressed in permanently and can´t be changed.
So now I know the solution to this very unusual problem...
 

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Hey dude just got off the phone and yep, they are sending me two o-rings. (BTW, i took the two clips out and threw them away. Those buggers were rusted and I suspect the cause of the original o-rings wearing out.)
 

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Compression Adjuster Screw

Hi, Sorry to resurrect an old thread, but what was the final solution?

Are these parts serviceable, or does it need to be a new fork tube?

I have the same problem, fortunately/unfortunately, my dealer managed to do the damage.

Thanks in advance.

Alan
 

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Had the same problem on my 2005 FJR. One of my compression rebound damping adjusters started leaking. It happened a few months after I replaced the oil and seals. The dealer said that the caps are not serviceable and would have to replace - 175.00 each! Obviously there is an o-ring in there that has given up - to bad they appear to be permanently assembled with press in caps.
I was able to get it to stop leaking by turning the adjuster all the way in tight. So-far so good and I like the bike's handling better now. Seems more planted.

Also - it's not the tube it's the cap :)
 

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I have a 2008 FJR that I bought new that has developed leaks at both lower compression adjustments. This is my first post so may not have full access to what I need. Do I need to replace the lower fork tubes, very costly and labor intensive I would guess.
 

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You don't h ave a location in your profile, so I don't know where you are. My recommendation is to call a local suspension shop, failing that, call Cogent Dynamics in Fletcher, NC... they work on all kinds of bike suspensions.
 

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I have a 2008 FJR that I bought new that has developed leaks at both lower compression adjustments. This is my first post so may not have full access to what I need. Do I need to replace the lower fork tubes, very costly and labor intensive I would guess.
Are you sure its a leak from the compression adjustment because its very rare and you have both leaking - never seen that one before in the 13 years ive been here.

It may be the fork seals leaking and you are just seeing it drip off the compression adjusters? i would wash off the fork legs and double check your diagnostic.

If its the fork seals there may be a solution before you go stripping the forks down come back and let us know.
 

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There is one other place it could be leaking from, the bolt that goes up from the bottom of the fork, on a bike this old it must have had at least one fork rebuild before now and the bolts could be leaking.
 

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You don't h ave a location in your profile, so I don't know where you are. My recommendation is to call a local suspension shop, failing that, call Cogent Dynamics in Fletcher, NC... they work on all kinds of bike suspensions.
Are you sure its a leak from the compression adjustment because its very rare and you have both leaking - never seen that one before in the 13 years ive been here.

It may be the fork seals leaking and you are just seeing it drip off the compression adjusters? i would wash off the fork legs and double check your diagnostic.

If its the fork seals there may be a solution before you go stripping the forks down come back and let us know.
There is one other place it could be leaking from, the bolt that goes up from the bottom of the fork, on a bike this old it must have had at least one fork rebuild before now and the bolts could be leaking.
I will clean off both to be certain. I am in the Pensacola FL area FWIW. I don't see any sign of oil above the adjusters but better to be 100% sure before doing anything. I have the service manual so am aware of the drain bolts above the axle.
 

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Have you checked what the settings of the lower damping screws are at, you may have to back them off a bit, then see if it still leaks.
I have not messed with them yet but that is the plan. Run them full in then back out to close to mid setting but not quite.

Thanks!
 
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