Saturday, November 20, 2010

How do u change motorcycle brake fluid?

I brought the bike a couple of months ago, and now realized that the fluid was BLACK. so i got new brake fluid, and am unable to empty out alllll of the old brake fluid b4 i put in the new brake fluid. does anyone know how to do that, and can u explain it without ne big motorcycle terms lol? help would be appreciated. thnks.How do u change motorcycle brake fluid?
While i agree with the other two, there still remains the fact that the guy needs a helping hand on how to do a change.



There are two ways of doing a fluid change, 1 is to get a length of clear tubing that is tight enough to grip onto the bleed nipple without letting air bleed in over it. you usually need a second pair of hands and you need to coordinate between the two of you releasing the bleed nipple (or if you have multiples, bleed them one at a time, going from the furthest nipple from the master cylinder first). where you need to release the bleed nipple as you start to squeeze the master cylinder and nip it up tight before the master cylinder is released, this needs to be performed until a good quantity of clean fluid comes through the bleed nipple. You then need to them go to the next line and work your way to the closest to the master cylinder (at most there should be only two bleed nipples, one per caliper, but i thought i'd explain it as its the same as doing this for a car).



2) By yourself. Get a one man bleed kit, which consists of a variety of lengths of tube to fit on the bleed nipple with a sizing adapter, going all the way to a one way bleed valve, which usually consists of a chamber with a spring loaded ball bearing. When you squeeze the master cylinder the old air/fluid mix is forced through the one way valve and the ball bearing instantly seals off the chamber as soon as pressure is no longer high enough to force the fluid through the valve.



This way all you need is to make sure the bleed nipple is securely attached to the tubing and the nipple is open enough to permit the bleed, you no longer need assistance from someone else to perform the drain, one of the best inventions yet made..



In both the methods you must keep track of master cylinder fluid levels to make sure that it doesn't get low enough to permit air bubbles to get into the system from the master end as all the fluid that is now in the system should then be drained and wasted just to get rid of any air bubbles introduced.



The main time this varies is when the front brake lines are a sod of a design that either require the calipers to be removed from the bike to ensure that the nipple is at the highest point or if they require the brakes be bled in a particular sequence to make sure it is done correctly. Also if ABS servo's are involved you also really REALLY should do this with the assistance of a manual or more experienced person.How do u change motorcycle brake fluid?
I can't tell you in just a few words how to do this correctly so my best advice would be to buy a service manual for your specific bike. You can get them at motorcycle shops, auto parts stores, or online. Your brakes are too important to just jump into it without knowing the correct procedures. It's really not hard but it needs to be done right.$10 or $20 spent on a Clymers or Haynes manual will be money well spent for this and other service your bike will need.How do u change motorcycle brake fluid?
Get a shop manual from your dealer, or a Haynes or Chilton manual if they have one available for your bike. It will come in very handy and you'll have fun and learn a lot working on your bike!



Changing the brake fluid and bleeding the system is very easy, and step-by-step instructions will be in the shop manual!How do u change motorcycle brake fluid?
I typed in %26quot;motorcycle brake bleeding%26quot; on the YouTube site.

Lots of videos showing how to bleed the brakes on various motorcycles.

Bleeding the brakes is very easy.

One point of warning, DOT 3 and DOT 4 oil is interchangeable. Not true with DOT 5.

Good LuckHow do u change motorcycle brake fluid?
Go to auto parts and buy a Mity Vac. Its a suction gun. It will pay for itself the first time you use it.\

http://www.zpower.com.au/catalog/images/

Cover you bike with plastic or an old raincoat to keep brake fluid off your paint.



Remove the top of the reservoir and the float inside it. Use the Mity Vac to remove the old fluid. Clean out the reservoir and replace the fluid.



Attach the hose of the Mity Vac to the bleeder valve on your brake caliper. Draw a vacuum and turn the bleeder to the left. Fluid should be drawn out the valve and into the cup.

(keep an eye on the reservoir and don't let the fluid run out or you will get air bubbles in the brake line).



When you start seeing clean brake fluid being drawn out, your're done. Tighten the bleeder , top off the reservoir, clean up and reinstall the float and reinstall the cover.

It takes about as long to do as it did for me to type this.