Magura Hymec hydro clutch

1/13/2021 8:55am Edited Date/Time 1/13/2021 8:56am
I have a Hymec hydro clutch on my CR 125 and since I installed it (even when brand new), it always had an air bubble sound at the slave cylinder when pulling the clutch lever. I've tried bleeding and flushing it multiple times, pushing fluid, pulling fluid, with seringue, with a brake bleeding pump, with or without tension on the rod and I can never get rid of the bubble. I also don't have oil leaking.

Slave cylinder operate fine, clutch too, although I find it a little grippy when engaging. I'm more worried when the unit and fluid warm up I feel like it is less responsive.

Are they all like that? Is it normal for those system?

I took some videos with sound, but don't know how to post them here.

Thanks
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kb22
Posts
144
Joined
8/5/2020
Location
Knoxville, TN US
1/13/2021 10:27am
With my hydraulics on my Harley I always kept the top open and zip tied the lever down for like a day and that usually bled it out fairly easy. Might be worth a try.

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