ZeroMR

I'm having a few issues with my brakes on my GSR. Sometimes the abs pump makes this sound when I turn my car on for a few seconds. A couple of weeks ago my brakes were really sluggish and if I was at a stop light the brake pedal would go to the floor. Happened for 3days straight then just stopped all of a sudden. Well today it's starting again and it's getting really annoying. I checked the brake fluid and check the brake pads and everything looks fine. Could my abs pump be going bad?

sk8rmike

The noise may possibly be an ABS pump self-test diagnostic. Some pumps do that and it'll make a noise when you start it up. The issue you seem to be having sounds like a master cyclinder going bad, though.

WqYn3

im havin the same exact problem... i just got my motor swapped in and i just got it back today. well when i drive off and hit the brake it didnt work right and the peddle went all the way down to the floor.

WqYn3

are CV axles the same for ABS or non?

dave22

Nope. ABS axles should have the rings for the ABS sensors. If you don't have them your ABS light should be on.

WqYn3

thats what i thought... this would cause my ABS to go crazy and not work right.

dave22

The light will be on, but the ABS won't do anything at all. It'll be just like you never had ABS.

Enigma

ABS in the 92 GS-R's suck ass. Pull the fuses and gravity bleed the system and refresh it with some new DOT-3, 4, 5 brake fluid. If it is mostly stock just use DOT-3.

Here is some helpful information I pulled in less than 3 seconds on GOOGLE.

"QUESTION: All those DOT numbers on brake fluid bottles are confusing.

What do they mean? They sure are confusing, and it's partly because they were determined by a federal agency (what a surprise). Brake fluids are classified by the U.S. Department of Transportation (DOT) by temperature range and viscosity. Just about the only ones you'll find in motor cycle brake systems are DOT 3, DOT 4, DOT 5, and DOT 5.1. DOT 3 and DOT 4 are polyglycol-based and can be mixed with each other. DOT 5.1 is actually based on a different chemical, but since it can be mixed with DOT 3 and DOT 4 it's lumped in with them and all three are commonly referred to as polyglycols. DOT 5.1 is also lighter in viscosity-about half that of DOT 4- because it was designed for the rapid cycling time of ABS systems. Now here's where the confusion comes in: DOT 5 is a silicone based fluid. Regardless of the fact that it's wedged in between DOT 4 and DOT 5.1, it's chemically dissimilar to the polyglycols. It will not mix with polyglycols, and should never be added to a system filled with polyglycol fluid. There's an added bit of confusion for owners of some European bikes, whose master cylinder reservoir caps say "Recommended fluid 3, 5," leading owners to believe they can use DOT 3, 4 or 5. There are no silicone based fluids in common use in Europe, however. There, the "5" designation is for a polyglycol based fluid, which is what these bikes are designed to use."


I hope that helps some!

-Trevor

WqYn3

thank you all

ZeroMR

I flushed my brakes and put new fluid in it. Still does it, I'm guessing it might be my MC going bad. I've givien up, it only happens every once in a while.