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Old 07-01-2015, 08:58 PM   #1
D-Man
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Clutch issues- Husky 450 SMR

MHers,

Having clutch issues with the Husky supermoto (track bike), specifically, the clutch isn't doing anything. Hx: bought the bike back in April from a well-known MHer. Great bike, set up for track-only. It had sit mostly idle in the guy's garage for at least a year. After a carb cleaning, the bike ran great. Rode it around the block a couple times back in April/May, and she rode just fine. Then I went out of town for 2 months. Bike was up on a stand, in my garage, in Neutral the whole time. I come back, the bike starts right up, but the clutch seems to be permanently "engaged", or in the "clutch-out" state. It will start in neutral, and it can be pushed in neutral. When not running, the shifter shifts it into/out of gear just fine, but I can't put it into gear and roll it with the clutch pulled in, and once I start it, it dies when I shift into any gear.

I bled the clutch lines best I could, topped it off with mineral oil (what it says on the master cylinder), but I don't know what to do next.

Any theories as to what's going on? Is the next step to drain the oil and open the clutch cover? I've replaced a clutch on a GSXR before, but that was the exact opposite problem (clutch slipping). Also, I've never worked on a hydraulic clutch.
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Old 07-01-2015, 09:10 PM   #2
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Old 07-01-2015, 09:38 PM   #3
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How did u bleed it? Ur on the right track thoough, u can lay it on its side and take the cover off(so u dont have to drain the oil), then see if the clutch plates are separating when u pull in the lever.
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Old 07-01-2015, 10:27 PM   #4
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Quote:
Originally Posted by BYRDMAN View Post
How did u bleed it? Ur on the right track thoough, u can lay it on its side and take the cover off(so u dont have to drain the oil), then see if the clutch plates are separating when u pull in the lever.
Bled it with a one-man brake bleeder kit- a clear piece of tubing with a bottle on the end. Clutch in>>>loosen nut>>>tighten nut>>>>>clutch out>>>>repeat until no more bubbles in line method.

I've been meaning to change the oil anyway, so I think I'll drain it, pop the cover, and take a look. Any reason it would bind up like this?
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Old 07-01-2015, 10:43 PM   #5
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Quote:
Originally Posted by D-Man View Post
Bled it with a one-man brake bleeder kit- a clear piece of tubing with a bottle on the end. Clutch in>>>loosen nut>>>tighten nut>>>>>clutch out>>>>repeat until no more bubbles in line method.

I've been meaning to change the oil anyway, so I think I'll drain it, pop the cover, and take a look. Any reason it would bind up like this?
Sometimes that bleeding method doesnt work on the clutch system and u have to reverse bleed it from the slave cynlinder up to the master using a syringe to push fluid up. Magura sells a reverse bleeder kit.

Have u tried gasing it once u put it in gear to possibke force the plates loose? It could be a variety of things wrong from your MC to your Slave to the clutch basket being notched and not allowing the plates to easily seperate.
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Old 07-01-2015, 11:18 PM   #6
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Old 07-02-2015, 06:41 AM   #7
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Old 07-02-2015, 09:39 AM   #8
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Was the clutch fluid low? If so, check your slave cylinder. Known weak point on the Magura clutch for Huskies. This usually will fix the problem.

http://www.7602racing.com/product-p/hus-cp01.htm

Or zip-ty racing makes a complete slave cylinder for the Huskies.

Here is a thread describing the problem. Maybe this will help.

http://www.cafehusky.com/threads/dis...h-fluid.22274/

I've had the same problem with mine before. Bleeding usually fixes it. My slave cylinder slowly leaks to the point where I have to top it off about once a year so it is a very slow leak. If it is leaking you should be able to see a pool of clutch fluid when you take off the slave cylinder.

Last edited by brandontx; 07-02-2015 at 09:41 AM.
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Old 07-02-2015, 09:53 AM   #9
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Also forgot to mention that if it is the slave cylinder leaking, there is another cheap fix. Uptite Husqvarna offers an upgraded piston seal for $5.

Recap. Here are your options if it is the slave cylinder. The first two may or may not work but are cheaper.

Uptite Husqvarna seal - $5
7602 Racing piston - $40
Zip Ty Racing slave cylinder - $100
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Old 07-02-2015, 10:09 AM   #10
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With the engine off put it in 3rd gear, with the clutch pulled in rock it back and forth and See if it will break loose
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Old 07-02-2015, 10:16 AM   #11
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What he said, sounds like stuck plates.
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Old 07-04-2015, 11:05 AM   #12
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Solved

Quote:
Originally Posted by kd5qoq View Post
What he said, sounds like stuck plates.
Update: Yep, it was just stuck plates from sitting too long. Started it, revved it up, and it popped right into 2nd gear, broke the plates loose. Rode her around the block and everything is fine.

Thanks for the advice
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