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RE: Brake Question Need Some Parts -> - 8/27/2008 4:40:02 PM

TimBucTwo

Posts: 608
Joined: 6/13/2006
From: Upstate NY, USA
Status: offline

Zach, do this first.

With the bike not moving press the rear pedel a few times hard.
When you do this is the rear wheel free to spin?

< Message edited by TimBucTwo -- 8/27/2008 4:42:14 PM >

(in reply to TimBucTwo)

Post #: 16

RE: Brake Question Need Some Parts -> - 8/27/2008 7:43:24 PM

tallenuf

Posts: 224
Joined: 7/2/2008
From: San Jose, CA.
Status: offline

Zach, everything TBT says is correct, but I would save investigating the proportioning valve (PPV) as a last resort. Chances are it is fine and the problem lies either in the fluid lines (perform proper bleeding per Shadow1) the rear caliper internals (disassemble, inspect, repair) or the secondary master cylinder mounted on the left front fork leg, just above the brake caliper. If none of these uncovers your issue, then check the PPV. Good luck and be sure to report back on your progress.

_____________________________

My motorized toy list (still under construction):
1993 CBR1000F
2005 DRZ400E
1997 Trans Am WS6 convertible (only 21k miles!)

(in reply to TimBucTwo)

Post #: 17

RE: Brake Question Need Some Parts -> - 8/27/2008 11:21:15 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

hello forgot to mention the guy who i bought it off of changed the rear proportional valve.. im going to try and bleed the system here soon.. ill let you all know what is going on..Once again thanks for the good advise..

(in reply to TimBucTwo)

Post #: 18

RE: Brake Question Need Some Parts -> - 8/29/2008 7:25:54 AM

TimBucTwo

Posts: 608
Joined: 6/13/2006
From: Upstate NY, USA
Status: offline

Steps are as follows; loosen the orifice bolt by backing it out against the snap ring and then stop. using the lever: bleed the right front caliper from the upper bleed valve. bleed the left front caliper from the upper bleed valve. using the pedal: bleed the front right caliper from the lower valve. bleed the front left caliper from the lower valve. bleed the rear caliper from the lower bleed valve bleed the rear caliper form the upper bleed velve. tighten the orifice bolt. Do not over tighten it. Note: You need to keep adding fluid to the reservoir or it will run dry. If this happens you start all over.

(in reply to Zach)

Post #: 19

RE: Brake Question Need Some Parts -> - 9/20/2008 2:38:40 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

Hello all i have the bike at the shop for the brakes and they got back with me they said the Rear Back Master Cylinder is leaking, so they think thats it like you said Tim. Just ordered a complete kit and hopefully this will be all i need :) Just want the bike perfect. Ill let you know all more once they get the part and installed..Thanks Once Again...

(in reply to TimBucTwo)

Post #: 20

RE: Brake Question Need Some Parts -> - 10/10/2008 1:35:18 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

Hello all thanks for all the help just got bike back today it was the rear master cylinder and cup. So i had the shop put a new one on and its ready to be ridden im going to be listing it here in a week or so anyways if you know anyone interested let me know thanks once again..

(in reply to TimBucTwo)

Post #: 21