March 27th, 2015, 11:34 PM | #1 |
Freedom for Germany
Location: This World
Join Date: May 2011 Motorcycle(s): Ninja 250R-FI Posts: A lot.
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Bleeding brakes - simple and easy
This is valid for the 300 (plus every and each bike) also.
Stahlbus bleeder valves, please look here: http://www.stahlbus-us.com/ |
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March 28th, 2015, 06:16 AM | #2 |
Daily Ninjette rider
Name: Hernan
Location: Florida
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March 28th, 2015, 06:47 AM | #3 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
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I have those auto bleeders, but I still use the hand vacuum pump, still the fastest, best way.
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March 30th, 2015, 05:53 AM | #4 |
Wannabe Reborn
Name: Unregistered
Location: Cincy Ohio
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Sorry to thread jack, but this seemed appropriate thread. Quick question: are the front brakes typically hard to bleed? Even using the conventional method? Before removing old pads, ousted the old pad to apply pressure to caliper Pistons, and cracked the bleeder valve to allow them to compress, closed bleeder valve before removing pressure. Ended having to remove brake line as the caliper slides were stuck. When re-assembling, had to continue bleeding air out, which is rather difficult given the small master cylinder size. Using a bleeder bottle, I feel I have all the air out, and have run a fair amount of fluid through, but have little or no lever stiffness. Lever retracts all the way to handle bar. Caliper moves and grabs rotor, but I can still spin wheel by hand. Any help appreciated.
Thanks~
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March 30th, 2015, 07:20 AM | #5 |
I'm crazy,your excuse is?
Name: Winston
Location: Connecticut
Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.
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The best way I have bled systems that are hard to bleed, is to tap a hole on a spare brake reservoir cap and put a air valve on that -or a quick air connect and pressurize with air up to 10psi and- watch that fluid level- crack bleeder open and be done in a few moments.
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March 30th, 2015, 07:24 AM | #6 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
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Best and easiest way to bleed brakes,
HFS Brand 2 in 1 Brake Bleeder & Vacuum Pump Test Tuner Tool Kit New https://www.amazon.com/dp/B00NP60URE..._3Xvgvb0PPV82B
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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March 30th, 2015, 07:37 AM | #7 | |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
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Quote:
Link to original page on YouTube.
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March 30th, 2015, 08:06 AM | #8 |
Cat herder
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At $40+ EACH, those Stahlbus valves are a bit spendy... but then on the Ninjette you only have the one caliper up front. I don't recall if the M/C has a bleeder on it... IIRC it doesn't.
Stahlbus points out something that I think catches people. When you crack the bleeder, it's supposedly possible for air to seep in through the threads. I've read elsewhere of putting plumber's teflon tape on the threads to help prevent this: http://www.gixxer.com/forums/showthread.php?t=283074 Side note: Since brake fluid is hygroscopic (absorbs moisture) there is no reason to use just part of a bottle when replacing your fluid. That's false economy... by the time you need the rest of the bottle it'll be no good. Side note #2: Hydraulic fluid is basically oil. It's okay to chuck it in with your waste engine oil for proper disposal. (Pet peeve: Instructions that say "dispose of properly" with no guidance whatsoever on how to do that.)
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March 30th, 2015, 08:20 AM | #9 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
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Thread tape... when nothing else will seal it, it's most likely a leaky thread.
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March 30th, 2015, 08:47 AM | #10 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
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On the upper sealing threads near the hex flats in the right direction specifically. I have seen people tape it all the way to the bottom of the threads and get little pieces ripped off and stuck in brake system.
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March 30th, 2015, 08:57 AM | #11 |
I'm crazy,your excuse is?
Name: Winston
Location: Connecticut
Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.
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If the bleeder leaks something else is amiss. Either the breeder is bad or could be rust or scale getting in the way, or the caliper is now junk.
For the bleeding noted above that will work- just don't rely on for sealing a leaking bleeder. |
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March 30th, 2015, 07:28 PM | #12 |
Wannabe Reborn
Name: Unregistered
Location: Cincy Ohio
Join Date: Mar 2009 Motorcycle(s): Blue 2008 Ninja 250 Posts: 302
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Finally got it. Seemed that I had air behind one of the pistons, and the caliper slide was hydro locked, not allowing the caliper pistons to move. Had to disassemble the caliper slide bracket, clean out gunk I missed. Re-lubed, little less this time, pushed pistons all the way in with the bourse hose off, which cleared the air. From there, hooked up my $8 bleeder bottle from Advanced Auto, pumped a few cycles of fluid through, and that was it. Great lever pressure. Pulled about 35-40 miles of bedding the pads. All is well again. Thanks for the help.
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March 30th, 2015, 07:42 PM | #13 |
cadd cadd cadd
Name: Cadd
Location: 41°21'13.1"N, 74°41'37.4"W
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Thanks for the info. I didn't realize you can't bleed the brakes the way you do in a car (2 person job).
Person 1 pumps and holds the brake pedal & tells person 2 to open the nipple Person 2 opens the nipple and lets the fluid out. Person 2 closes the nipples and informs Person 1 to release Person 1 releases brake pedal Keep repeating until all old fluid is out and no more bubbles. Sometimes I take a small mallet and gently tap the calipers.....real gently. Now.....why can't we do it the same way with the bike? How would air be introduced to the line? |
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March 30th, 2015, 08:07 PM | #14 |
ninjette.org sage
Name: Aaron
Location: Winder, GA
Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718
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You can absolutely do it this way (I just recently did it when installing my stainless lines), but it's a 1-person job on a bike.
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March 30th, 2015, 09:34 PM | #15 |
cadd cadd cadd
Name: Cadd
Location: 41°21'13.1"N, 74°41'37.4"W
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Wait....if you can do it this way and especially since it's a 1 person for the 250/300 (since calipers are on the right side of the bike), why spend money for a vacuum device???
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March 30th, 2015, 09:38 PM | #16 |
ninjette.org sage
Name: bob
Location: Earf
Join Date: Apr 2013 Motorcycle(s): 2005 Ninja 250, 2006 SV650N Posts: 642
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I just use a cut up plastic bottle as a catch, gloves, dirty shop towels, and my thumb. If you really want speed bleeders murphskits has them. I think the part number is
SB8125L for the newgen at $7 a piece. |
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March 30th, 2015, 10:21 PM | #17 | |
Private Joker
Name: Ben
Location: Towson, MD
Join Date: Nov 2012 Motorcycle(s): '99/'01 Ninja 250 "sketchy", '13 Ninja 300 "yoshi", '03 GSXR 600 "merlin" Posts: A lot.
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Quote:
does anyone ever reuse the brake fluid afterwards? I always put new fluid in but I'm wondering if it can be done safely
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March 30th, 2015, 10:33 PM | #18 | |
wat
Name: wat
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Quote:
get a hose long enough that it will reach all the way up to the MC res.... pump the fluid out of the caliper, back into the res... circulate it for 5 minutes. aint no ****in bubs left after that ****!
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March 30th, 2015, 11:58 PM | #19 |
cadd cadd cadd
Name: Cadd
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Genius!!! For a bike, it's definitely doable. 4ft of tubing would be enough. There's no sense of throwing away the fluid since it's all new fluid anyway! And at the very end, just pour new fluid in the MC if it makes you more comfortable!
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March 31st, 2015, 03:29 AM | #20 |
Wannabe Reborn
Name: Unregistered
Location: Cincy Ohio
Join Date: Mar 2009 Motorcycle(s): Blue 2008 Ninja 250 Posts: 302
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And you don't have to refill the master cylinder after 3 pumps...wish I would have thought of that....
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March 31st, 2015, 07:09 AM | #21 |
ninjette.org sage
Name: Aaron
Location: Winder, GA
Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718
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Because it takes forever. I took about two hours to replace my brake lines, and about an hour and a half of it was bleeding.
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March 31st, 2015, 07:41 AM | #22 |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
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omg duh, soooo simple
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March 31st, 2015, 07:45 AM | #23 |
Inline 4!!!
Name: Danny
Location: MA
Join Date: May 2014 Motorcycle(s): 2008 CBR600rr, 1987 KLR 250 Posts: A lot.
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sorta unrelated: My car's brakes really need to be done soon.... I've been putting it off for a while now.. Not sure if the system needs to be bled or not. pads have some meat to them, but the pedal feels so squishy. So I guess there must be air, funny cause the brake level has been near full the entire time I've owned the car.
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March 31st, 2015, 08:00 AM | #24 | |
The Corner Whisperer
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
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Quote:
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Goal: Shake A Million Hands | Look through the corners | Track Day Prep | Closest track? | The Mid-Ohio School |
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March 31st, 2015, 08:02 AM | #25 |
Private Joker
Name: Ben
Location: Towson, MD
Join Date: Nov 2012 Motorcycle(s): '99/'01 Ninja 250 "sketchy", '13 Ninja 300 "yoshi", '03 GSXR 600 "merlin" Posts: A lot.
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zip tie the brake lever into the brake position overnight before, makes it easier or so I'm told
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March 31st, 2015, 08:11 AM | #26 | |
I'm crazy,your excuse is?
Name: Winston
Location: Connecticut
Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.
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Quote:
What I do is pinch brake lines after protecting them with an old hose and vice grips- crack bleeder open and try caliper apart. This does 3 things- gets rid of old fluid in calipers and prevents same crap old gunk from finding its way back up the system and makes getting caliper retracted easier. suck out old brake reservoir fluid with a turkey baster and fill with fresh- continue to bleed as normal. |
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March 31st, 2015, 08:21 AM | #27 |
ninjette.org sage
Name: bob
Location: Earf
Join Date: Apr 2013 Motorcycle(s): 2005 Ninja 250, 2006 SV650N Posts: 642
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March 31st, 2015, 08:25 AM | #28 |
ninjette.org sage
Name: Aaron
Location: Winder, GA
Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718
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Oh, I did that, too; it took me that long just to get the big bubbles out.
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March 31st, 2015, 12:10 PM | #29 | |
Inline 4!!!
Name: Danny
Location: MA
Join Date: May 2014 Motorcycle(s): 2008 CBR600rr, 1987 KLR 250 Posts: A lot.
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Quote:
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