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Discussion Starter · #1 ·
Just curious if anyone else's clutch fluid is all milky. Otis very dirty and you can't see through it. On the other hand, the brake fluid is very clear and clean still. Only has 1440 km on it. I know eventually the brake fluid will get dirty, but I haven't had a hydraulic clutch before. Is this normal or should I have it checked out?
 

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Just curious if anyone else's clutch fluid is all milky. Otis very dirty and you can't see through it. On the other hand, the brake fluid is very clear and clean still. Only has 1440 km on it. I know eventually the brake fluid will get dirty, but I haven't had a hydraulic clutch before. Is this normal or should I have it checked out?
No it is not normal. Your slave cylinder is bad. My slave cylinder and master cylinder was replaced under warranty. They need to do a recall on those parts because when my dealer called Kawasaki they stated that they have had several reports about this same issue! Then it took 3 weeks to fix because the parts was on back order
 

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When i took mine in yesterday for frame change over i mentioned my clutch was slowly getting less pull and probably had air in it,fluid was clear, they replied we will just put a new kit in master cylinder.
 

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Just curious if anyone else's clutch fluid is all milky. Otis very dirty and you can't see through it. On the other hand, the brake fluid is very clear and clean still. Only has 1440 km on it. I know eventually the brake fluid will get dirty, but I haven't had a hydraulic clutch before. Is this normal or should I have it checked out?
Just curious, what type of chain lube do you use - and how frequently?

Brock
 

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Discussion Starter · #6 ·
Motorex Chain Lube

Motorex racing chain lube. Only used it once at 1400 klms. Do you think the chain lube has contaminated the clutch fluid somehow? I thought the clutch system should be completely sealed. Why do you ask Brock, and what do you recommend?
 

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I noticed mine was milky/dark as well. Was the clutch slave or master leaking anywhere? what caused the discoloration? What exactly was replaced? has the fluid changed colour since the warranty work?
 

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Just curious if anyone else's clutch fluid is all milky. Otis very dirty and you can't see through it. On the other hand, the brake fluid is very clear and clean still. Only has 1440 km on it. I know eventually the brake fluid will get dirty, but I haven't had a hydraulic clutch before. Is this normal or should I have it checked out?
You made me go and check my bike. Happy to say it's still clear and clean.
 

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Motorex racing chain lube. Only used it once at 1400 klms. Do you think the chain lube has contaminated the clutch fluid somehow? I thought the clutch system should be completely sealed. Why do you ask Brock, and what do you recommend?
That should be fine. We notice that excessive use of sticky 'won't fly off' type lubes can gum up the slave cylinder in hydraulic systems and lead not only to dirty fluid, but to a slipping clutch as the slave is slow to move/allow complete engagement of the pressure plate.

Since your OEM chain is a sealed, lube is only really required to ward off surface rust.

Sounds like you are doing everything correctly. I would speak to your dealer.

Brock
 

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Discussion Starter · #11 ·
Went to the dealer and showed them the clutch fluid. They inspected the master cylinder and slave cylinders for any signs of leaking or pin holes allowing air to enter the system. The H2 tech didn't find anything suspicious, so he performed a full clutch fluid flush free of charge. They said keep an eye on it and if it goes cloudy again, there may be a bigger issue. I will see how it looks in a week. No performance problems were ever noticed with the clutch during riding.
 

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H2QIK has the fluid remained clear or has it gone milky again yet? Just asking bc Ive noticed mine has started doing the same but Kawasaki has said that they havent had any issues reported regarding this
 

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Discussion Starter · #13 ·
All clear

H2QIK has the fluid remained clear or has it gone milky again yet? Just asking bc Ive noticed mine has started doing the same but Kawasaki has said that they havent had any issues reported regarding this
It has been a couple weeks and I've put about 1000 klm on the bike and the fluid is still clear. I use the clutch on all shifts unless I'm racing (force of habit) and I'm not sure if that had anything to do with it. They just flushed it and said keep an eye on it.
 

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To resurrect this thread for a bit....Just cause its good to share experiences for when people do a search looking for answers....

So last night I was out and about watching some fast cars go at it, and about midway thru the night on the interstate I couldn't get down to second, was stuck in third. Would go up gears but really problematic going down. I remembered earlier in the week my clutch lever feeling "weird" and not springing right back out, but kind of slower. So I slow down a bit, and screw with the up and down and get it back going....four or five min later, its pissed off and stuck in fifth. Barely get it down thru gears a couple of times going home then eventually fifth only for a ten min ride on city streets. Sucks.

Wake up, look at fluid and its a tiny bit milky, but barely, compared to brake fluid. Grab a line, bleed it completely new fluid thru. Fixed. Rode for a bit and its fine.

Brings two questions to mind.
1. Why did it occur and will it again. Couldnt find anything that would let in air or moisture.
2. Did I do clutch damage with it doing that dumb $hit, and possibly not engaging fully, while running hard earlier.

Time will tell.

NOLA
 

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Sounds like a different problem to clutch fluid , you should be able to down shift clutchless with a bit of throttle to help match gear speeds .
If its realy not wanting to shift its a selector, shift fork or return spring or something else in that area
 

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To resurrect this thread for a bit....Just cause its good to share experiences for when people do a search looking for answers....

So last night I was out and about watching some fast cars go at it, and about midway thru the night on the interstate I couldn't get down to second, was stuck in third. Would go up gears but really problematic going down. I remembered earlier in the week my clutch lever feeling "weird" and not springing right back out, but kind of slower. So I slow down a bit, and screw with the up and down and get it back going....four or five min later, its pissed off and stuck in fifth. Barely get it down thru gears a couple of times going home then eventually fifth only for a ten min ride on city streets. Sucks.

Wake up, look at fluid and its a tiny bit milky, but barely, compared to brake fluid. Grab a line, bleed it completely new fluid thru. Fixed. Rode for a bit and its fine.

Brings two questions to mind.
1. Why did it occur and will it again. Couldnt find anything that would let in air or moisture.
2. Did I do clutch damage with it doing that dumb $hit, and possibly not engaging fully, while running hard earlier.

Time will tell.

NOLA
NOLA,

Sounds like a problem with your clutch slave cylinder. You might not like this answer (given your history...), but we have advised others to see their local Kawasaki dealer and they have remedied the issue under warranty.

Brock
Brocks Performance
 

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@OzBooster
I thought the same, but the clutch lever has full return tension now, and its fine thru the gears. I am just going to watch it and if it happens again drop it off.
@Brock
Yeah, I would prefer to fix it myself, but the only way I can get the slave cylinder fixed and paid for under warranty is to drop it off. I might have to. But I also noticed your point about the chain lube earlier. I did have some Motul chain lube on the chain, and it was a bit gunked up in the sprocket area. I am wondering if the chain lube was the culprit and it screwed up my slave cylinder.

NOLA
 

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"I thought the same, but the clutch lever has full return tension now, and its fine thru the gears. I am just going to watch it and if it happens again drop it off."

That is weird that it effects it like that, wonder if the gunk was slowing the return of the selector shaft , If it is only a clutch slave problem at least its simple to fix, sounds familiar too
The early Busa had similar problems with hydraulic clutch, chain lube and road grime would build up in the back of the hydraulic piston, some would get passed the seal and contaminate the fluid, cheap fix of the time was a plastic bottle cap as a shield, later busa's came out with a rubber boot
 

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Yeah, I pulled the sprocket cover and saw all the grime built up, and hand cleaned a bunch of it, unless I take off the slave cylinder and the metal chain guard its hard to get to.

I went to the dealer today and same as me, they said it would be pretty hard to infiltrate the back of the slave cylinder where it goes into the case, but something had to cause it. They are gonna call Kawi Tue. I rode all day, was fine.

NOLA
 

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Andddddd, its broke again. Stuck in 4th for the ride home, now at the dealer for repair.
(Prob slave cylinder).

NOLA
 
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