Brake issue - TwoWheelForum: Motorcycle and Sportbike forums
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 04-02-2007, 08:35 PM Thread Starter
 
Join Date: Feb 2007
Posts: 6
Brake issue

I recenlty unhooked my rear brake foot peg but I didn't disconnect any brake lines I just took off the foot lever and the mount for it. When I put it back to gether I dont have and braking pressure in the front or back brakes at all.Do I have to blled my brakes and if so how would i got about doing that? Any insight would be greatly appreciated Thanks
Ruff R1d3r is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 04-02-2007, 10:09 PM
 
Join Date: Jul 2005
Posts: 24,016
Did you pump the brakes to build pressure? Try that...or if all else fails...bleed them. And, of course,



marko138 is offline  
post #3 of 14 (permalink) Old 04-03-2007, 11:34 AM
 
Join Date: Aug 2004
Posts: 940
Quote:
Originally Posted by Ruff R1d3r View Post
I recenlty unhooked my rear brake foot peg but I didn't disconnect any brake lines I just took off the foot lever and the mount for it. When I put it back to gether I dont have and braking pressure in the front or back brakes at all.Do I have to blled my brakes and if so how would i got about doing that? Any insight would be greatly appreciated Thanks

Year Make and Model and milage?.....

If you have a bike with linked brakes, you may have 1 (any Beemer is a pain to bleed) issue...if you have a bike with discreet systems, you likely have two (or more) issues; (air in the rear, air in the front, stuck pads, stuck cylinders) any chance you stored the bike outside, uncovered (rust and corrosion issues). Need more info, please.
oldetymebiker is offline  
Sponsored Links
Advertisement
 
post #4 of 14 (permalink) Old 04-03-2007, 09:08 PM Thread Starter
 
Join Date: Feb 2007
Posts: 6
Its a 2001 R1 I live in okinawa japan and its real humid out here so corrosion is an issue here.
Ruff R1d3r is offline  
post #5 of 14 (permalink) Old 04-04-2007, 11:45 AM
 
Join Date: Sep 2006
Posts: 114
Quote:
Originally Posted by Ruff R1d3r View Post
Its a 2001 R1 I live in okinawa japan and its real humid out here so corrosion is an issue here.
Awww okinawa!!! miss that place...typhoon season does make condition terrible for storage (himdity etc.) you stationed at kadena?

Anywho! if the bike was stored depending on how hydroscopic the fluid is and what not you may have water in there...which is kinda bad since internal componet such as the plunger, spring will start to go bad!

Solution: Bleed brakes and try again, if still not good, dissasemble the caliper and inspect the seals for the pistons, dust seals in particular, all sorts of crud will get up in there and cuase it to seal...also the heat from constant braking will harden the seal and make the piston seize!

Oh and
KillerR33d is offline  
post #6 of 14 (permalink) Old 04-04-2007, 12:33 PM
 
Join Date: Feb 2007
Posts: 110
Quote:
Originally Posted by Ruff R1d3r View Post
I recenlty unhooked my rear brake foot peg but I didn't disconnect any brake lines I just took off the foot lever and the mount for it. When I put it back to gether I dont have and braking pressure in the front or back brakes at all.Do I have to blled my brakes and if so how would i got about doing that? Any insight would be greatly appreciated Thanks
Like Marko, Killer, and Oldtyme said, try pumping your brakes to build up pressure. Check the actually lines too for any cracks or holes. My front brake had this problem this past weekend and all I did was pump the hell out of the front brake. Works fine now. I'd say start with checking the easy stuff like the lines and building up pressure and then move on to taking apart the caliper. Might save you a lot of time and frustration if it's as simple as a crack or something stupid like that.
rockinthef4i is offline  
post #7 of 14 (permalink) Old 04-04-2007, 01:23 PM
TWF Champion
 
Phenix_Rider's Avatar
 
Join Date: Nov 2006
Location: SouthWest, PA
Posts: 3,230
Send a message via AIM to Phenix_Rider
What else did you do when you had it apart?
Phenix_Rider is offline  
post #8 of 14 (permalink) Old 04-04-2007, 01:38 PM
 
Join Date: Apr 2006
Posts: 2,142
Are your pads seated on the calipers correctly? I had the same problem on a bike once(or so I thought) on my back brake, and it turned out the pad on the piston side was just in there crooked, so I fixed that, and all was fine. I only realized that after bleeding the system about 20 times. but its worth a quick look to see if thats your problem.
King Bob is offline  
post #9 of 14 (permalink) Old 04-04-2007, 05:04 PM
V-Twin Moddin
 
Gas Man's Avatar
 
Join Date: Jul 2004
Location: SE Michigan
Posts: 38,916
First check for apparent leaks. Make sure your banjo bolt at the rear peg is tight.

If all else fails try to bleed the rear brake both at the caliper and the banjo bolt.

Report back!




-Chris
aka Gas Man



Was: 2002 Kaw ZX-9R
IS:


is me till the
Gas Man is offline  
post #10 of 14 (permalink) Old 04-04-2007, 08:50 PM
 
Join Date: May 2006
Posts: 1,840
1) How many bleeder nipples on the rear caliper? There may be more than one.
2) Do you have full travel in the brake lever?
3) Did you try pulling the rear master cylinder apart and cleaning it out?
4) Did you remove the lines from the calipers and clean out the banjo bolt and the hole to the inside of the caliper?
5) You mentioned corrosion being a problem where you are...can you see any on the master cylinder or caliper?
Knight is offline  
post #11 of 14 (permalink) Old 04-10-2007, 07:14 PM Thread Starter
 
Join Date: Feb 2007
Posts: 6
The rear caliper has one nipple and I dont see any leaks on the system anywhere I bled the brakes 2 times now and the brakes still are spongy. Ill clean out the master cylinders this weekend and update if it fixes anything
Ruff R1d3r is offline  
post #12 of 14 (permalink) Old 04-11-2007, 02:28 PM
V-Twin Moddin
 
Gas Man's Avatar
 
Join Date: Jul 2004
Location: SE Michigan
Posts: 38,916
Yeah you might have a leaky master cylinder...

Brake clean the calipers real good and once dry... pump the brakes.. check for leaks at the caliper. Its more likely leaking there if everything is tight.

Oh... rubber lines? Check where the rubber is crimped into the metal ends...




-Chris
aka Gas Man



Was: 2002 Kaw ZX-9R
IS:


is me till the
Gas Man is offline  
post #13 of 14 (permalink) Old 04-11-2007, 09:12 PM
 
Join Date: Apr 2006
Posts: 2,142
if you havent upgraded to SS lines, and checked the calipers for leaks as Gas Man suggested, this is probably a good opportunity.
King Bob is offline  
post #14 of 14 (permalink) Old 04-11-2007, 11:31 PM
 
Join Date: Jul 2005
Posts: 24,016
Quote:
Originally Posted by King Bob View Post
if you havent upgraded to SS lines, and checked the calipers for leaks as Gas Man suggested, this is probably a good opportunity.
Truth.



marko138 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TwoWheelForum: Motorcycle and Sportbike forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome