Saturday, November 20, 2010

How do I flush the brake fluid on a gsxr 750?

When I had my tires changed the guy said my brake fluid was dark (it is....) and needed to be changed front and rear. Can anyone explain how to do this? A page number in the service manual is fine.... cant seem to find it in there.How do I flush the brake fluid on a gsxr 750?
1) Unscrew the reservoir cap.

2) Sop up the existing old fluid with paper towels.

3) Fill the reservoir to the fill line with new DOT 4 or higher brake fluid.

4) Put a coffee can next to your front wheel.

5) Connect a hose from the brake bleeder valve on your brake caliper assembly and put the other end in the can. A battery drain tube hose is the correct diameter or fish tank hose.

6) Fill the can with brake fluid up to the hose end and an inch or two more. You need not fill the can all the way. You can use cheaper DOT 3 fluid in the can.

7) Secure the hose so it does not pop out of the can or fluid.

8) With a 10 mm wrench, loosen the bleeder valve about 1/2 turn or so.

9) Squeeze the front brake all the way to the grip. Fluid should start going into the hose from the caliper assembly.

10) While keeping one hand on the squeezed brake lever, tighten the bleeder valve with the other hand.

11) Let up the brake lever.

12) Repeat steps 8 through 11 until the reservoir gets low.

13) Fill the reservoir again.

14) Repeat steps 12 and 13.

15) You are done.

16) The rear brake is a similar process.

17) Remove bleeder hose(s), discard fluid responsibly, and go ride!How do I flush the brake fluid on a gsxr 750?
Your welcome.

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How do I flush the brake fluid on a gsxr 750?
The best thing to do is go out and buy a brake bleed kit. Otherwise its more of a two person job. You bleed the fluid from the caliper end, while topping up the fluid at the reservoir. You have to avoid air getting in the system, which is where the bleed kit helps. If you let the reservoir empty then air gets in and you have a longer job. Once the new fluid comes out of the caliper end the job is done. I doubt that it mentioned in your motorcycle handbook, but it should be in the workshop manual.How do I flush the brake fluid on a gsxr 750?
This is a pretty general thing and it will work on any bike or car with disk brakes. It really is this easy! You can change the pads without loosening the fluid if you use a 'c' clamp. Some pictures might be useful! Loosen but do not remove the reservoir cover on the handlebars. On the brake caliper, find the bleed valve (on some calipers there are two), you can put a hose on it to run into a container or just hold the container underneath, but I suggest using a hose. You do not want to get brake fluid on your paint, it will eat through it instantly. Undo the bleed valve and pump the brakes until all the fluid is pumped out. When you pump it, it could squirt a long ways, so it is probably best to put a hose over the bleed valve, some cheap fuel line from Canadian tire will work, just throw it away when you are done. Replace the fluid with the DOT 3,4,5, be sure to use whatever came out of the bike. Do not mix brake fluid! Some you can, and some you can't, so it's better if you don't! Bleeding the brakes can get complicated, pour fluid in and pump the cylinder until you get it coming out the bottom bleed valve . Pump the reservoir a bit and then, with the bleed valves at the bottom closed, and while holding the pressure on the handlebar lever, crack the nut that attaches the brake line to the reservoir, just barely crack it and tighten it quickly. Usually they are very tight! Pump the reservoir with the handlebar lever a bit more and you will see some bubbles come into the reservoir. Bubbles and air in the line are your number one enemy! Then just bleed the brakes by pumping up the reservoir and while holding pressure, quickly opening and releasing the bleed valves on the caliper to release any air. This might take a while, I have spent two to three hours doing this. If you are lucky and sophisticated (or have had a lot of trouble doing this like me, and you do it a lot), you can buy a pump like I have (my roommate got it for me for my birthday, I think he was tired of seeing my pain!) It forces the brake fluid in through the bottom and up to the reservoir, no bubbles, first-time, every time! I hope this helps, Tim.How do I flush the brake fluid on a gsxr 750?
Do one master cylinder at a time. Take of the lid. Make sure it is full of fluid. Open the bleeder screw on the caliper. Do not pump the brake. Be patient and allow gravity to pull the brake fluid out. Top off the master cylinder reservoir as necessary. When the fluid starts to look like the normal new color, you're done!



This is the most simple way. Also, you will be less likely to introduce air bubbles.How do I flush the brake fluid on a gsxr 750?
Preacher is correct, once clean fluid is draining out then all the old is gone, just make sure you keep the reservoir topped otherwise you'll be pumping and bleeding.