SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
juitz:
Hi Ted, yeah tried that and no luck.
Prefilled the caliper with the piston as far out as it could be located on rotor.
Bought one of those "one man" bleed bottles and barely get any fluid/air.
The master cylinder just doesn't seem to suck fluid from the reservoir.
McCabe-Thiele (Ted):
--- Quote from: juitz on October 02, 2022, 05:19:56 PM ---Hi Ted, yeah tried that and no luck.
Prefilled the caliper with the piston as far out as it could be located on rotor.
Bought one of those "one man" bleed bottles and barely get any fluid/air.
The master cylinder just doesn't seem to suck fluid from the reservoir.
--- End quote ---
Can you see the lever pushing the piston down in the master cylinder or could it be stuck down - might be worth removing the lever and see if you can see where the piston is?
Failing that I have no other ideas
Bryanj:
Sounds like airlocked master, i have several times put up how to bleed master
Sesman:
Don’t forget the ‘matchbox’ trick when using the brake lever to pump fluid.
juitz:
I can see the m/c piston moving, and I can prime the m/c.
I can also feed fluid from the bleed nipple all the way to the m/c with a syringe.
Tired the matchbox trick as well.
I may get a single spurt of oil when I press the lever but it just feels like there's air in the system. Any resistance I can feel is from the lever return sprin and friction.
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