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Basic Maintenance: Brake Fluid
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peterbaron Offline
Road Warrior

ON, Canada
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RE: Basic Maintenance: Brake Fluid
#21



This method is not good : "So I held it open with one hand while pumping with the other"... unless the end of the outlet hose is submerged in a bottle of fluid and already primed by method below.
It might be ok with the front calipers, not the rear one.

This methot IS good: "Then I switched to the open-and-close routine on the valve for each pump of the brake lever and this made the fluid move along better", always creates good working pressure pressure.

The best bleeding methods:
#1 by pressurizing the reservoir = needs special equipment
#2 by vacuum bleeder = needs special equipment
#3 pumping by brake lever or pedal with an outlet hose submerged in a bottle of fluid and already primed = no special equipment needed

           "Drop a gear and disappear"®
'24 Kawi Z650RS - Hooligan®
'14 CB1100 DLX, s/n 170, 42K kms - FOX® 

'14 CB1100/ABS, 134K kms - sold
'13 CB1100/c-ABS - 56K kms - sold             
            *Grand Chancellor* 


08-21-2026, 10:15 AM
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Gone in 60 Offline
Blood Biker of the Apocalypse

Orange County, CA
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RE: Basic Maintenance: Brake Fluid
#22



I always do mine, front and rear, by pumping up the vacuum then opening and closing the bleeder valve before the vacuum drops too far. I never really pay attention to whether or not there's fluid in the catch reservoir on the other end, but invariably the outlet hose is submerged in the old fluid half-way through the process. Always works fine for me. I use the "pump with one hand, control the bleeder wrench with the other hand" method.

If I'm doing multiple bikes in one day, when I'm done I will have switched hands for pumping and have given my hands and wrists quite a workout.

You know what? I actually would like a pickle.


08-21-2026, 10:56 AM
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