Rear Brake Problems

[yeller_twin]

The rear brake on my TLR is having issues. Everytime that I depress the lever, there is nothing. Pump it back up and sure enough it works fine.....for about ten seconds. I have bled it repeatedly to no avail. The level is perfect and was perfect when the problem arose. If I am just cuising down the road it won't fade as quickly. If I am out wheelieing....it fades almost immeditely. Not good when you are tryin to learn to use the brake to contol wheelies.

Oh yeah, my seat flew off last night. Anyone seen one fly? I searched the ditches and the field for two hours. Thing must fly like a kite. Guess I'll find it when it's harvest time.

[Bugtooth]

No idea about the brake thing but welcome to the Planet
Sorry to hear bout your seat

[TLSBill]

Sorry about your seat..

On the brakes I would check the parts themselves to make sure the aren't leaking and that they maintain pressure. (I just rebuilt my Ninja M/C because of something like you are describing).

Oh.. and WELCOME to the PLANET!

[Seca]

Sounds like a problem with your master cylinder.

[yeller_twin]

I was hoping that there might be some simple fix that I had never heard of, but it looks like I'll have to tear into her. Uncle Sam won't mind if I do this at work will he?

[gilko]

Sorry dude - i can't help u either
sayin that ........ i don't like stopping so i never worry about brakes - good luck!

[Steve TLS]

Rear wheel or rotor isn't loose and banging the calliper piston back in too far?

Same for the caliper itself, if it is not secure it may move around and belt the pads and pistons back too.

:dunno That's all I can think of if it is fine when cruising but plays up when stunting.

[MotoTiller]

Welcome

[yeller_twin]

Just from sitting today (rainy) the brake had lost its prime. I bled it one last time and got one small bubble out of the back bleeder. I watched the pads when I pushed the lever down and they moved quite a bit? Anyone know what color the fluid in the reservoir is suppose to be? Mine has a nice brown color.

The caliper and rotor are secure, but I never would have thought of that.

Found a replacement tail cowl. Got my old Genuine Suzuki tank bag out and strapped it on. Came out better than I thought it would. Thought there was room under the cowl...ha...I could stuff my helmet in there.

[TLSBill]

Brown?.. Uhh.. tan ish.. maybe? but not brown...

By the time it hits a deep amber color it's hosed... (soaked up to much moisture.. but then again.. it's supposed to do that..)

[Steve TLS]

Brown

You haven't tried completely replacing the fluid yet?

[yeller_twin]

Nope, but I guess I will now. How was I suppose to know that brake fluid changes color? I forget that this thing has two wheels.

[TLSBill]

Brake fluid is designed to suck moisture out of the system. (it's bad for parts, promotes corrosion, and isn't nice to brake "feel").

The main way to tell it's hosed is by color. Open a new bottle and compare.. You'll see.. I use the Motul 600 stuff works great.

[miketlr1000]

I re-built these brakes 4 times in the past month! if it's not leaking, it sounds like the secondary piston seal in the master, it's breaking down and letting fluid back thru it and causing your problem. This is just a good guess of course. I rebulidt mine today.
I also have a master clyinder if your in the market for one, having another caliper and master was very helpful in my long battle with mine.

Good luck!

[yeller_twin]

I could tell the difference when I added a little fluid after bleeding them. That's why I asked. I'm just a young pup and I need guidance.