KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: Rekles on September 20, 2011, 10:16:01 AM

Title: Need Help With kx250 rear brakes!!!
Post by: Rekles on September 20, 2011, 10:16:01 AM

Bought a 01 kx250 and both front and rear brakes were shot.
the front i fixed but the rear brakes are pissing me off and i have no clue what else to do.

first i changed the line with a brand new one.
then i rebuilt the master cylinder
then i took apart the rear caliper and blew it out with air and checked the seals for nicks and scrapes
then i put in new pads!


i don't know what i'm doing wrong? its not building up pressure and the caliper wont even close. pleas help

Title: Re: Need Help With kx250 rear brakes!!!
Post by: Friar-Tuck on September 20, 2011, 11:17:30 AM

Hey Reckles,
 There is a post By Username Motorad, that had quite a fit with his brakes and ended up being the anti-rattle clip was off just a smidge and played Havoc with his brakes.  I'll look for the post and pics.
  Tuck\o/

Here is the thread, post #14 starts the solution and a pic.
http://www.kxriders.com/forums/index.php/topic,8219.0.html

Title: Re: Need Help With kx250 rear brakes!!!
Post by: Rekles on September 20, 2011, 06:51:53 PM

thanks, i might just have a bunch of air in the line to im gonna check right now

Title: Re: Need Help With kx250 rear brakes!!!
Post by: Friar-Tuck on September 21, 2011, 07:01:29 AM

Hey Reckles,
 When you bleed the rear brake make a loop in the bleeder line so there is no way for the air to get drawn back in the caliper.
  http://dirthammers-forum.com/
 Tuck\o/

Title: Re: Need Help With kx250 rear brakes!!!
Post by: alward25 on September 21, 2011, 07:39:50 AM

Reverse bleed.  Use a syringe with a tube, open the bleeder and force the fluid, keeping the air out up to the resevoir.  Sometimes a bubble won't work out of othe master cylinder.

Title: Re: Need Help With kx250 rear brakes!!!
Post by: jonny500 on September 21, 2011, 07:54:45 AM

take the caliper off and have a friend hold it hold it as high above the master cylinder as possible while bleeding it. also make sure the pedal position adjuster is allowing you to get a full stroke of the master cylinder piston.

Title: Re: Need Help With kx250 rear brakes!!!
Post by: Rekles on September 22, 2011, 09:09:50 AM

thanks for all the help, yeah i bled them finally and thought everything was good, then went riding only to find out that i messed something up cause there is no rear brake now. im gonna check for leaks now i guess

Title: Re: Need Help With kx250 rear brakes!!!
Post by: Friar-Tuck on September 22, 2011, 01:47:14 PM

Rats,
  Let us know what you find.
  Tuck\o/