Lost Brake Pressure?
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Road Warrior
Joined: Dec 2006
Posts: 1,575
Likes: 180
From: N.E. OHIO
Lost Brake Pressure?
17 FLHXS, 5600 mi. on it, lost front break pressure. Brake fluids replaced by dealer 600 miles ago,never a problem. Bike sat in heated garage, 50 degrees, couple months and took it out for a quick spin other day and had trouble with little front brake pressure. Got home pumped up brake and it was ok. Took it for another spin today and it was good. No leaks anywhere, fluid in bubble is up there. I did zip tie lever today for overnight for the hell of it. WTH Fluke? 
Is 5600 miles a typo? If not, the seals may be getting bad from non-use. Hydraulics (like most mechanical systems) like to be exercised regularly. Also, a fluid change at 600 miles means less than the time elapsed since the last change. Hydroscopic fluids scavenge any moisture that infiltates porous membranes like the rubber gaskets found throught the brake system.
Stellar HDF Member
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
17 FLHXS, 5600 mi. on it, lost front break pressure. Brake fluids replaced by dealer 600 miles ago,never a problem. Bike sat in heated garage, 50 degrees, couple months and took it out for a quick spin other day and had trouble with little front brake pressure. Got home pumped up brake and it was ok. Took it for another spin today and it was good. No leaks anywhere, fluid in bubble is up there. I did zip tie lever today for overnight for the hell of it. WTH Fluke?
Sounds like you are good to go now, air will seek the high spot sooner or later.
Thread Starter
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Road Warrior
Joined: Dec 2006
Posts: 1,575
Likes: 180
From: N.E. OHIO
Is 5600 miles a typo? If not, the seals may be getting bad from non-use. Hydraulics (like most mechanical systems) like to be exercised regularly. Also, a fluid change at 600 miles means less than the time elapsed since the last change. Hydroscopic fluids scavenge any moisture that infiltates porous membranes like the rubber gaskets found throught the brake system.
Thread Starter
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Road Warrior
Joined: Dec 2006
Posts: 1,575
Likes: 180
From: N.E. OHIO
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Stellar HDF Member
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
Seriously, take her out in a parking lot or secluded road and make the bike activate the ABS. Air will not get out of the ABS until it is activated, if air is in the ABS module then you might have a problem stopping when activated.
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Thread Starter
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Road Warrior
Joined: Dec 2006
Posts: 1,575
Likes: 180
From: N.E. OHIO
Wouldn't the idiot light come on if problem with ABS before it's needed.
