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Offline biker1300

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Re: pads brake the disc
« Reply #8 on: April 02, 2019, 05:46:42 PM »
Sounds like the master cylinder isnt letting the fluid return      is there freeplay at the master cylinder and the lever      also is it both front calipers  or is it the linked brake one ?

Offline cematin

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Re: pads brake the disc
« Reply #9 on: April 03, 2019, 06:50:35 PM »

I changed the seal of master cylinder I thought  the problem was the master cylinder  I bought the seal kit

but nothing was resolved

when I brake with the front lever  only the front calipers pistons  move

this is the rear master cylinder which brake one of the left front piston

Offline Shuky

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Re: pads brake the disc
« Reply #10 on: April 24, 2019, 12:22:08 AM »
Did you solve this?

Offline cematin

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Re: pads brake the disc
« Reply #11 on: April 24, 2019, 08:02:16 AM »

not yet

I need to buy silicone grease for the pin boot

I hope I will resolve my problem


Offline Shuky

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Re: pads brake the disc
« Reply #12 on: April 24, 2019, 09:05:34 AM »
I have zhe same issue now, greese that i’m using is kk. What bother s me is that something is pushing the oil even i do not press leveler:-)

Do Ou agree? How did you solve this issue? (Your first picture)

Offline cematin

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Re: pads brake the disc
« Reply #13 on: April 24, 2019, 09:33:20 AM »
I drained the brake fluid
all disassembled calipers pistons and master cylinder
cleaned, changed seals

I think it's important to use the correct grease for the pin boot otherwise the caliper can't move correctly and the pads brake the disc

I regret that Honda has not mounted piston calipers opposite as on the 1200F  I think it's more efficient

I don't like those calipers, if I could, I will have mounted the 1200F radial calipers

Offline Shuky

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Re: pads brake the disc
« Reply #14 on: April 24, 2019, 10:40:02 AM »
Even if you remove leveler, hand push rod, the oil is still on pressure?

Offline Shuky

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Re: pads brake the disc
« Reply #15 on: April 24, 2019, 06:02:20 PM »
Hi, finally fixed.
Disassemled both calippers, extracted whole oil from sYstem. Remove fittings from calippers. Wash calippers in solution in dimmer, put graphite grass for calipper sliders. Put everything togethet. And voilla, it works:-)