Which strikes me as a bad thing...

Seems I have evidence of an oil leak showing on the clutch cover grills and frame. Bugger.

Is this gonna be a crank case split job?

And is it most likely to be one of these two seals?:

26 91204-KV3-841 Oil seal 69x84x8 (ally)
27 91207-KV3-781 Oil seal 28x40x8 (ally)

(as shown on the clutch parts page for an SP)


Whilst I'm looking, it seems there is an error on the page, as item 24 looks like a seal yet is described as the ball bearing, and item 28 is listed as a seal. Is it just me?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

It'll be the seal behind the clutch basket. It only involves taking the right hand engine cover off, after removing the clutch basket of course.
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If I have to take the carbs off once more...

Ah cool not so drastic then. Don't suppose you can confirm which of those seals it is can you?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

The big one!

91204-KV3-841
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Andy.
NSR-WORLD.COM

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The expensive one!

Cheers Andy. Hello Lings?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

This happend to me and I too changed the big oil seal only to find the problem returned.
It turned out to be an O ring on the shaft behind the crankcase cover. I did all the work with the motor still in the frame and only had to remove the cover behind the clutch to get to the 50p O ring. My incompetence cost me a new a new gasket as the kickstart assembly comes off too.
No problems since and I think this O ring failure is rare.
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if it had a tail - it would wag

Thanks for the heads up. Think I'll order the lot and do them all, that way I'll be sure to have everything covered.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Dave,

i think this will be the best... Small cost compare to big relief...Dave pay also attention to the washer that goes in the water pump shaft... Don't forget to place it back in its position...

Hmmm, first hurdle, who's got a tool for holding the clutch so I can remove the nut?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Dave,
A pneumatic impact wrench is the easiest way to take the nut off. I'm sure you could borrow one if you don't have your own. No need for fancy special tools for this one.
Deon

Funnily enough I've just been and bought this:

wrench
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Though still need a clutch tool to torque it back up again
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If I have to take the carbs off once more...

Well this is the leaking seal:



And I prised it out:



So I'm guessing I don't need to remove the side cover from the motor?
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

If you've managed to prise the seal out then there is no reason to remove the engine cover.
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If I have to take the carbs off once more...

Phew! Thanks for confirming that.

As for torque, I'll just use the same tool to clatter it back on till the thing lines up where it came from!
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball