I've just finished a total rebuild of both front brake calipers following the binding problem at the last race meeting.
I've replaced the braided brake lines with new plastic coated braided lines, new oil and dust seals, new olives on the lines, and new sealing washers, but have re-used the fittings as they were perfect.
In addtion I fitted a late model Suzuki GSF1200 master cylinder 3 weeks ago, which works perfectly.
The only thing left to do was bleed the system.
Bleeding brakes is not one of my favorite jobs. Over the years I've invested in a Sykes Pickavant brake bleeder, which has never really worked right, or used the monotonous pump / open bleed nipple / close brake nipple / pump etc etc etc
However I discovered an extremely quick, effective way to bleed the brakes, and guarantee that there are no air bubbles in the lines.
First, get a new bottle of 5.1 brake fluid (I always use Motul), and - heres the important part - a 1200mm long length of clear tubing that is a nice snug fit over the bleed nipple.
Right then, take the top off the brake resovoir, open your nice new bottle of brake fluid and fit one end of the tube over the nipple. Next, thread the remaining tube up to the handle bars with the end near the resovoir (a cable tie to hold it to the upper fairing stay works a treat.
Start bleeding the brakes in the normal way - a few strokes on the lever then a slow stroke as you crack the nipple open a bit to let the air through. After there's about 150mm of brake fluid in the tube, I didn't have to keep opening and closing the nipple any more.
Carry this on until the brake fluid is almost to the top of the clear tube (being careful not to let the resovoir pump dry), and then a few more pumps of the lever to get the fluid to the end of the hose and then put the end of the hose into the top of the open resovior.
What you now have is continous bleeding as air cannot enter the tube because it is under the surface if the fluid level.
You can now open the bleed nipple and pump away for several minutes - you'll be surprised how long the air bubbles take to get all out.
I did this on both sides with a 100% drained front brake system and had them fully bled in 17 minutes
- usually I'm swearing at it for at least a hour or so.
Just one note of caution - make sure everything is completely clean - you don't want any dirt in there eh.
And the cost of the hose - about $1.50.
“I venture not to cross that finish line in a neat, tidy well ordered bundle, but to slide across it sideways in a shower of spark’s, leaking oil, hissing steam shouting ..Geronimo !!!!! “
2005 SV996R SOLD
1988 FZR750/1040 race bike SOLD
1988 FZR750 - the next project CHANGING THE LOOK AGAIN, BUT STILL ON THE ROAD
Now he's got a KAWASAKI!!!!!!!!!!!!!! Nope - Sold that one too