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Hebo Hydraulic clutch - Honda XR


Trailryder42

Hey all,

I recently had a 440 kit installed in my "00XR400 and with the heavy duty clutch springs that were part of the kit, the clutch work was a little tougher than I like. So I bought a Hebo hydraulic universal clutch kit from my buddy Jim Cook at Smackover Motorsports. The reviews of it I'd read said the pull was slightly easier and longer than the Magura and quality was as good or better.

Thing is, after looking around all over the web, I could find no help or suggestions on where to mount the slave cylinder on an XR. These are 3 links I used to help me, tho none of them work specifically with the XR.

http://www.john-stichnoth.com/Hebo.html

http://dirtrider.net/drn_tested/erider/hydrualic_clutch.html

http://www.thumpertalk.com/forum/showthread.php?t=2151

So after spending a few days experimenting with different potential mounting points, keeping in mind I need to take into consideration the amount of heat the unit will see and keep it accessable yet somewhat protected, I put it on the left side of the forward main frame downtube. I fashioned a bracket that would use the left mounting point for the fuel tank. Having an IMS 4 gal tank made options scarce. Maybe if anyone else wants to do this project on an XR, between the links provided and what I'll add, it will be a little easier.

I used the long cable and sheath provided in the kit, without cutting/altering it's length. And the stock style cable keeper/adjuster that uses the stock bracket mounted to the right case cover. The end of the cable is bare so you use the cable clamp provided in the kit that fits the XRs throw lever.

HeboXR2 (Small).jpg

Here's a picture of the slave cylinder mount. I used a temporary spacer setup the same thickness as the fueltank mount for initial fitting of the cylinder. I wrapped the cylinder in the same heat wrap I used on the header to help shield it from any heat. I used plastic spiral wrap on the braided line to add some abrasion and heat resistance to it.

HeboXR1 (Small).jpg

Here's final installation pictures.

HeboXR5 (Small).jpg[HeboXR4 (Small).jpgHeboXR3 (Small).jpg

My decomp lever would no longer fit on the handlebars, so for now, until I figure out something better, I mounted it to the bark buster.

HeboXR6 (Small).jpg

Here's a tip I discovered. The bleeder nipple/fitting bolt threads are a sloppy fit. When trying to bleed the system with my vacuum bleed tool, air/vacuum escapes around the threads of the nipple and prevents the tool from working properly. I had to remove the nipple and wrap its threads with teflon tape. The system bled fine after that. Getting the amount of lever pull I needed was tricky and took me awhile to figure out. Took the bike for a spin up and down the street to check it and Man is this thing sweet! I bet it cut lever pull difficulty by 50% or more.

The braided line is longer than I needed for this install and figuring out a way to route the excess and get the end clocked in the orientation I needed it was a pain. Later I might have it shortend.

Hope this might help someone else that is contemplating this mod.

Trailryder42

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