Replaced Brake Fluid and bleed Rear Brakes - Triumph Speed Triple 2006
After flushing the front brakes (link here)with new DOT4 brake fluid it was time to do the same for the rear brakes. The color of the fluid was dark brown and the level has reached "Low" mark on the plastic reservoir (see the picture below).
The reservoir is positioned so close to the frame that it is impossible to remove it's lead with a regular length screwdriver. And after trying to unscrew the top cover of the rear brake fluid reservoir with a variety of short philips screwdrivers I gave up and removed the whole thing from it's holding bracket (pic below).
Once removed I wedged it between the frame and the fairing.
I have placed the wrench on the bleed nipple and connected the brake fluid bleed kit tubing.
Once the bleeding kit was connected, I unscrewed two screws that held the rear brake reservoir cover and removed the metal cover, plastic bracket and the flexible rubber diaphragm.
You can see the old brake fluid color .... ewwwww.
I filled the reservoir almost to the brim (being careful not to spill any fluid on the fairing or other parts of the bike) with fresh fluid and started to pump the rear brake pedal, while topping off the reservoir with fresh brake liquid until I no longer so the old brownish-red colored liquid running through the tube that is connected to the bleed nipple. Once the fluid filling the bleeding kit bottle was the color of the fresh DOT 4 brake fluid, I closed and tightened the rear brake's bleed nipple, wiped down and replaced the diaphragm, plastic bracket and the metal cover on the rear brake fluid reservoir and bolted it back in to it's proper place in the frame.
Rubber diaphragm goes in 1st.
Plastic bracket 2nd.
Metal cover and the screws 3rd and last.
I used a drop of a blue "Loctite" (which I now use for all the nuts and bolts on my motorcycle) to make sure the bolt doesn't vibrate itself lose. The color of the new brake liquid is dramatically different as can be seen at the pic below.
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Comments
Thanks for the write-up.
Thanks for the write-up. Never done this on a bike, but after seeing your write-up, I'll be doing it this weekend. My fluid is getting to be an ugly color and the rear brakes feel soft. Thanks again for the help!
You are welcome ! If you get
You are welcome ! If you get a chance, take some pictures and do a write up of your own. Everyone does things differently, maybe you'll have some tips I missed ? Never know, might even help another DYI bike owner.
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