Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Change brake fluid?
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="BRYDEN1, post: 791334, member: 46670"] Dot 4 has a higher dry boiling point than dot 3 but is also is more hygroscopic(ability to asborb moisture). As brake fluid absorbs moisture the boiling point drops and the fluid degrades(turns black and sooty). Dot 4 starts out with a higher boiling point but degrades faster, so if you change your brake fluid every 5 years stick with dot 3. A better idea is to flush the fluid when it starts to darken. Your caliper and master will stay smooth and last longer if the soot never gets a chance to turn into sludge. On a bike the best way to flush or bleed brakes is to reverse flush. I rigged up a cap with vent line that screws right on top of a bottle of brake fluid. (save the spout caps off of gear oil bottles) Make sure the cap and vent line will not leak or pop off . Fill the line with fluid and pop it onto the caliper bleeder screw. I just lay the bottle of brake fluid on the floor and use my foot to apply pressure. Open the bleeder and let the fluid flow from the caliper up to the master. As the fluid fills the master keep sucking it out and keep flushing until the fluid is totally clear and the air is gone. Its easiest to get all the air out if you flush all the fluid in one step, don't stop and start, keep the fluid moving up at all times. Close the bleeder and your done. Its a lot easier if you can find a bottle that is nice and soft so you don't have to fight the bottle. A CLEAN AND DRY 700ml pop bottle will work in a pinch. BTW never reverse bleed your cars brakes, The ABS will not be happy. Hope this doesn't sound complicated because it really isn't. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Change brake fluid?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom