front brakes. no pressure!help!

cwilliamson126 · 11-12-2011, 05:52 PM

got an 03 Z and used it for XC racing. at a race i lost pressure and never got it back. originally thought it was brake fade but still didnt have any fronts the whole race. put braided lines on it and a master cylinder off a ltr 450. out of ideas.... any thoughts or answers?????

jackz400 · 11-12-2011, 05:55 PM

have you bled them properly?

SedaliaPowerSports · 11-12-2011, 06:01 PM

do they work some or none, can you pump them up and get a little? need more info.

cwilliamson126 · 11-12-2011, 06:14 PM

yes i have bleed them properly many times. and there is absolutley no pressure at all in the lever. maybe its the way im bleeding them? and the fluid isnt going down at all in the MC when im pumping them...

chinoduca · 11-12-2011, 06:25 PM

There are 2 o-rings in the little front brake fluid reservoir, one of them is inside and when it goes bad and you press the lever it doesn't create enough pressure. It happened to me and I wasn't sure what it was until the dealer told me. I changed the o-ring and the problem was solved. It can sometimes go bad when you change the brake fluid, I'm not sure why.

You will either have to get a same size o-ring from somewhere or change the whole brake fluid reservoir because Suzuki does not sell that part number by itself.

cwilliamson126 · 11-13-2011, 03:11 PM

thanks, ive read about a couple different ways to bleed them so im trying those to see if ill get anything but if not the o ring does sound like it might be a problem because i started having problems when i noticed it was low and filled it with dot 3 instead of dot 4 fluid and thats when i started having problems.

11-12-2011, 05:52 PM	#1 (permalink)
cwilliamson126 :::Rookie Rider::: Join Date: Oct 2011 Posts: 5	front brakes. no pressure!help! got an 03 Z and used it for XC racing. at a race i lost pressure and never got it back. originally thought it was brake fade but still didnt have any fronts the whole race. put braided lines on it and a master cylinder off a ltr 450. out of ideas.... any thoughts or answers?????

11-12-2011, 05:55 PM	#2 (permalink)
jackz400 :::Ozark 250 rider::: Join Date: May 2011 Location: Ireland Posts: 363	have you bled them properly? __________________ 2008 Suzuki LT-Z400 Removed Lid D.I.D Timing Chain Motion Pro Clutch Cable Intake HotCam Snorkel Removed Dynojetted Jardine Slip-on Pipe Renthal Non O-Ring Gold Chain Renthal Sprockets (14/40) (also 13/40) BlingStar Nerfs Pro Elite Bumper "Home-Made" Steel Grab Bar Tag X5 Hi-Bend Bars Size 10 Rear Rims with Kenda Klaw 6 Ply Tyres LED Taillight "Spize" Aluminium Dash Carb Spring Mod Team Suzuki/Yoshimura Graphics Kit

11-12-2011, 06:25 PM	#5 (permalink)
chinoduca :::Post Whore::: Join Date: Oct 2009 Location: Doha, Qatar Posts: 2,145	There are 2 o-rings in the little front brake fluid reservoir, one of them is inside and when it goes bad and you press the lever it doesn't create enough pressure. It happened to me and I wasn't sure what it was until the dealer told me. I changed the o-ring and the problem was solved. It can sometimes go bad when you change the brake fluid, I'm not sure why. You will either have to get a same size o-ring from somewhere or change the whole brake fluid reservoir because Suzuki does not sell that part number by itself. __________________ '07 LTR 450 - Yoshi rs-5, Intake Hotcam cam, 08 exhaust cam, FuelAtv intake, PCIII, Sandtars all around. '03 White Z400 - SOLD I♥ SuzukiCentral!

11-12-2011, 06:01 PM	#3 (permalink)
SedaliaPowerSports :::Mini LT80 Rider::: Join Date: Mar 2011 Posts: 212	do they work some or none, can you pump them up and get a little? need more info.

11-12-2011, 06:14 PM	#4 (permalink)
cwilliamson126 :::Rookie Rider::: Join Date: Oct 2011 Posts: 5	yes i have bleed them properly many times. and there is absolutley no pressure at all in the lever. maybe its the way im bleeding them? and the fluid isnt going down at all in the MC when im pumping them...

11-13-2011, 03:11 PM	#6 (permalink)
cwilliamson126 :::Rookie Rider::: Join Date: Oct 2011 Posts: 5	thanks, ive read about a couple different ways to bleed them so im trying those to see if ill get anything but if not the o ring does sound like it might be a problem because i started having problems when i noticed it was low and filled it with dot 3 instead of dot 4 fluid and thats when i started having problems.

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