6th. Gen front brake locking up

It may have been a fluke. I'd bleed it to flush out all old fluid, and ride with that bleeder wrench in my pocket (or at least in the tank bag). It may never do it again, but you never know.

 

well ed a stuck caliber could be cuased by the fluid build up forcing pressure on it (caliber)and it got hot swelled and got stuck remember if metal expands it then can get stuck so the posabilty of heat cooling down after being pulled over also contributed to the caliber releasing.bottom line piston was pushed out therfore brakepad touches rotor right rite then after math is a mystery ?? sorry i wasn't there to elaborate for everybody? only few things make a caliber push the brake pad out force from master cylinder satan or debrie hit it or rust made it stick for a quick pulse i ride with middle finger on front brake index on clutch motocross maybe a slight pull created the problem??? and it froze but lets go drink some paote and walk through the spirit world and we will then find the answer until then its all mechanics lever master cylinder line piston calibers rotor thats all folks.......:yield: it.......blah :blah: :blah: :blah: :smash: :smash: :smash: :smash: :smash: oh w8 a minute u know wat it waz fool air in da line wata noob................anda:

 

Out of curiosity, do you have a shop manual and are you following the step-by-step bleeding process? I got out my manual to get a better understanding of the LBS arrangement and how everything inter-related, and was a bit taken aback by all of the steps required...

And when you had the original problem, did you have to open any of the left hand side bleeders, or just the right? I'm not trying to beat this to death; just trying to get an education...

 

I had this same exact thing happen to me yesterday!!! However, after I applied the front break again, it unlocked. Weird. I'm taking it to the dealer tomarrow.

 

My money is on a bad master cyl. It is not allowing the front brake to release. I'm sure the dealer will figure it out.
Keep us posted, Eddie

 

I still haven't cured mine..... nor done anything to cure it. After talking it over more with SLOVFR, Im going to change out the front brake lines. It possibly is damaged from the tumble the bike took last year. The right clipon was broken off, I'm thinking maybe the hose is damaged internally and not allowing fluid to return properly. (partially collapsed)

Im hoping i can buy just the front lines from Galfer. Anyone know ???

 

Is it still doing it? Does the lever still lock up?

 

yes.......

 

I wouldn't say that it's not the brake lines if they were crushed in an accident. But, my money is on the Master cyl. I've seen it several times before. I can't wait to find out for sure what is going on with your bike. Keep us posted with any updates. GET IT FIXED before it wrecks you or strands you on a busy, narrow road, and you get ran over by a blonde in a sports car talking on a cell phone while putting on make-up and reading the Enquirer!!

 

............mmmm....sounds sexy. What a way to go. :biggrin:

But seriously, im gonna start with the brake line. If i upgrade to steel braid and it doesn't fix it i wont be too upset as i want to do that upgrade anyway.

 

Yeah, Sounds like a good excuse to upgrade.
Hey, if you're going to get run over anyway, better her than Bubba with his beat-up Dodge truck not paying attention because he is trying to find his spit-cup.

 

I'm curious to see where this one goes, too. I'm still on the fence about keeping the '07, as much as I like it, but the techno-gadgetry makes maintenance more than I'd like it to be.

 

I just read this thread...thought I'd "dredge" it up cause I think I have some useful information. If you take the cap off your master cylinder you'll see two holes, one large and another teeny one. If that teeny one is obstructed, a brake system will do EXACTLY what yours is, Tori. My understanding is that little hole provides a place for brake fluid to go when it gets hot and expands. I've come across this same thing a handful of times over the years. Bleeding probably won't help...rebuilding the master cylinder may...if in the process you make sure that little hole is open. Hope that helps.

 

I agree 100%. I feel sure that rebuilding the M/C will fix your problem.

 

Just a couple of options, insufficent clearance between brake lever/master cyl piston, dirt residue blocking compensating port in master cyl or internal blockage in brake line.

 

Thanks for the ideas guys,... i'll have to check the tiny hole theory. Although the system has never been open, so i dont know how debris/dirt could be in there. The next step is to remove all the lines and send to have them duplicated in SS. Both which require time and money i dont have right now....

 

UPDATE: I just installed new Stainless Steel front brake lines on the bike. The bleeding process went totally normal. No issues bleeding whatsoever. I will give it a test ride tomorrow and we'll see if it acts up. I'll keep you posted.

 

Yeah, the crossover piece could be about 1-2" shorter. I've told Spieger about it, so the next ones they make up would be shorter. I haven't tied any of it down. That was just a pic showing them right after install. I haven't even ridden it yet. ........thats whats planned for today at lunch.