R1200ST new brake line,what to bleed on ABS

153731 · 11-03-2009, 08:33 PM

I just installed a longer brake line from the Front Brake resevoir to the fitting located at the frame neck. Looking at the ABS unit from the top, I see what appears to be 6 bleeder nipples. 3 seem to be for the front half of the unit, possibly the front circuit?
1 of them is located off of the electric motor, one is taller and one is shorter. That makes up the front circuit, my quess. The same configuration is on the back half.

The question:
"Since I replace the brake line from the front brake lever/resevoir, what nipples have to be bleed? I appreciate you help in advance, newbbie to BMW motorcycles and have not gotten Service manual yet.

deilenberger · 11-03-2009, 09:54 PM

You'll have to bleed/flush the front control circuit. This is a case where Jim VonBaden's DVD might come in very handy.. or look at Dana Hagar's excellent articles on servicing EVO brake systems:

http://users.rcn.com/dehager/

Unfotunately - we don't have a DIY for the EVO system yet - but the R1150 system and the R1200 systems are virtually identical.

lostboy · 11-03-2009, 09:54 PM

Unless you are bleeding the whole system, bleeding at just one bleeder will probably do the trick. You may not even have to crack a bleeder; just connect the hose and work the lever, watching for bubles rising from the master cylinders vent port. When bubbles stop appearing, you're done.

marchyman · 11-03-2009, 10:18 PM

Counting from the front of the bike toward the back of the bike, the six bleed points are:

front metering circuit
front control circuit
rear integral circuit
front integral circuit
rear control circuit
rear metering circuit

The only one you likely need to touch is the front control circuit bleed point, second back from the front of the bike.

JimVonBaden1 · 11-04-2009, 01:25 PM

The one marked "Front Control Bleed Point" is the one you need to bleed. Essentially it is like any manual bleed process.

Jim

11-03-2009, 08:33 PM	#1
153731 Registered User Join Date: Oct 2009 Posts: 12	R1200ST new brake line,what to bleed on ABS I just installed a longer brake line from the Front Brake resevoir to the fitting located at the frame neck. Looking at the ABS unit from the top, I see what appears to be 6 bleeder nipples. 3 seem to be for the front half of the unit, possibly the front circuit? 1 of them is located off of the electric motor, one is taller and one is shorter. That makes up the front circuit, my quess. The same configuration is on the back half. The question: "Since I replace the brake line from the front brake lever/resevoir, what nipples have to be bleed? I appreciate you help in advance, newbbie to BMW motorcycles and have not gotten Service manual yet.

11-03-2009, 09:54 PM	#2
deilenberger A bozo on the bus Join Date: Mar 2003 Location: Spring Lake NJ, USA Posts: 3,840	You'll have to bleed/flush the front control circuit. This is a case where Jim VonBaden's DVD might come in very handy.. or look at Dana Hagar's excellent articles on servicing EVO brake systems: http://users.rcn.com/dehager/ Unfotunately - we don't have a DIY for the EVO system yet - but the R1150 system and the R1200 systems are virtually identical. __________________ Don Eilenberger, MOA Ambassador - http://www.eilenberger.net Spring Lk Heights NJ - NJ Shore BMW Riders Ex-lotsa beemers, '07 R1200R (current ride) and some bimmers..

11-03-2009, 10:18 PM	#4
marchyman Registered Curmudgeon Join Date: Jun 2008 Location: SF Bay Area Posts: 766	Counting from the front of the bike toward the back of the bike, the six bleed points are: front metering circuit front control circuit rear integral circuit front integral circuit rear control circuit rear metering circuit The only one you likely need to touch is the front control circuit bleed point, second back from the front of the bike. __________________ /\/\arc — R1200GS plus farkles and R69S (restored)

11-04-2009, 01:25 PM	#5
JimVonBaden1 Kool Aid Dispenser! Join Date: Mar 2004 Location: Woodbridge, VA Posts: 996	The one marked "Front Control Bleed Point" is the one you need to bleed. Essentially it is like any manual bleed process. Jim __________________ www.jimvonbaden.com

11-03-2009, 09:54 PM	#3
lostboy Registered User Join Date: Sep 2007 Posts: 664	Unless you are bleeding the whole system, bleeding at just one bleeder will probably do the trick. You may not even have to crack a bleeder; just connect the hose and work the lever, watching for bubles rising from the master cylinders vent port. When bubbles stop appearing, you're done.