Let the fun begin [FJR 1300 Final Drive Seals]

This starts back here at “My FJR thinks it’s a Harley”, or better yet a BMW.

I received all the seals that I ordered from University Motors in Fargo, ND. (Whom I highly recommend. They saved me almost $40 in parts after shipping.)

Tonight I started tearing into it. I drained the final drive (oil was still pretty clean), then proceeded to remove the rear wheel and take the pumpkin off.

Since it was leaking from the weep hole, I really expected to see a LOT of fluid in the swing arm. I at least expected a good amount. I didn’t find that. I know for a fact it was leaking from/through there as it was dripping.


I also expected to see the inside towards the final drive at the end of the drive shaft good and lubed. It was, but not as much as expected.

It almost looked like it was leaking between here as the bottom of the entire final drive was pretty nasty too, but I think that’s only because it ran to the bottom.

You can see the bottom half (not on the towel) is dirtier around the plastic shield but it’s not as nasty as I’d expect if it was leaking from here.

I’m a little torn at the moment as to which seals to replace. I have them all 🙂

Seal #34 is easy, #12 not so much, as I’m going to have to find that ‘special’ tool.

I’m going to post up on the FJRForum and see what the consensus is.

Update: Well, after inspecting all the parts, I can’t really see where it’s leaking from.  I still think #34 or #12, others on the board thing I have an issue with O-Ring #20 but I’m not convinced.

#34 was ‘dirty’ so I cleaned everything backup and reassembled it.  Did the normal maintenance for this time of year, greased the splines and changed all the fluids.  We’ll see if it continues to leak.

After putting it all back together I came in to find that I’d received the ECU recall notice.  So if I’m taking it in for that, might as well have them fix the seals under warranty at the same time.

We’ll see how it goes.  I really haven’t had the altitude surging issue that others have noticed or had issue with.

My FJR thinks it’s a Harley…

Ugh… My final drive has been weeping, and it appears to be getting worse.

After the ride today, it only took 15 minutes to create this:

This after just 380 or so miles. That rear wheel was just cleaned, so clean you could eat off of it.

I’m sure this would fall under warranty, but I don’t have a clue as to who I’d trust with the bike for what will amount to a $12 seal?


By the looks of things externally, based upon where the leak appears to be… I need one or more of the following seals (in the red Circles)


Of course none of the local dealers have these parts so I’m giving University Motors in Fargo North Dakota a shot at them. If I have to wait, might as well get decent pricing on the parts. How bad could this repair be? We shall soon find out.


I’ve recently learned that…  I’m probably over filling this thing.   Now at my first ever fluid change I was careful to put in just the required amount.  It seems to me that that volume of fluid filled it to the bottom of the threads for the fill plug.  But allegedly that’s not right.  If you have that much in it, it’s too full and has no where to go but to get pushed past the seals.

So, I’m going to do my 20k maintenance soon.  Install 2 new tires, plugs, and change all the fluids.  When I do that I’ll clean everything up and make sure I have just the 8 ounces or what’s required and see if it still leaks.

Prior to the void rally, I topped it off (to the bottom of the threads).  It leaked/weeped like a SOB the entire time but when I checked it.  It’s still full, so I must be over filling it.  Or at least that’s the current logic.

Are the current seals ruined?  Not sure.  I still have them on order and will replace them if necessary.