Tan liquid on sprocket cover bolts - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 3 (permalink) Old 09-07-2016, 08:22 PM Thread Starter
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Tan liquid on sprocket cover bolts

03 sp2 17k miles. Got it about 500 miles ago. What a mess. Anyways I took the swingarm off because I have to patch some holes rubbed into it from the exhaust.

I took the sprocket cover bolts out in an attempt at removing the chain. When I removed the longest 2 bolts they had a tan watery liquid on them and some of it seeped out of the hole. I smelled it to see if it was motor oil and it didnt smell like it.

What could it be?
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post #2 of 3 (permalink) Old 09-08-2016, 05:48 PM
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Brake/clutch fluid, it's a hydraulic operated clutch
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post #3 of 3 (permalink) Old 09-09-2016, 01:47 PM
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Quote:
Originally Posted by pirks View Post
Brake/clutch fluid, it's a hydraulic operated clutch
If it's brake fluid from the clutch slave cylinder, and it's tan, it's absorbed a lot of water and the whole line will need to be purged and bled, from the master cylinder on down.

This happened to me when I had my Hayabusa serviced one time.
The local service shop replaced the clutch master cylinder diaphragm with a diaphragm different bike that obviously didn't fit at all, so I went quite a while with the system sucking in all that wonderful Florida humidity.

When I went to bleed the system due to increasingly heavy clutch action, that's when I found the problem. And it was a mess (to phrase it lightly).
The moisture-laden fluid was so thick, it came out the bleed valve like brown paste. It took about a liter of brake fluid to purge the line and slave cylinder.
And it was quite a chore to clean out the master cylinder of all that goop.
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