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Thread: Rear brake is kinda weird with new brake pads

  1. #1
    Junior Member
    Bike: 2013 Honda NC700SA
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    Exclamation Rear brake is kinda weird with new brake pads

    Hi guys,

    Last weeks I've spent some time cleaning and lubricating the clutch cable, callipers, pistons --- it has 3 in the front --- installing new brake pads. My bike now feels like you are riding a brand new 2020. So far so good.
    I've had this 2013 Honda NC700SA for more than a year now and I don't know if I got used to everything being tight as the bike system was messy and dirty.

    The problem with the rear brake is that It depends on the speed when I press the hear brake first slowly my foot goes all the way down and it seems like it is not working. If instead of keeping my foot I start to pump it 2 or 3x, then it starts breaking hard.
    If I press the front one first and then the rear one, it breaks hard and starts getting soft.
    If I press it abruptly, it gets pretty hard and works as expected then gets soft

    The ABS system has some kind of little tank above the engine to release the pressure from the brakes. When I press the front one, you can hear a little air noise, but when I press the hear one you can hear I loud one at some point.
    I already checked the system and there is no bubbles, no air so again I don't know if because of the fact that everything was a mess, dirty as **** and I got used to everything being tight and now everything is smooth I am kinda lost about what is the normal behaviour.
    I don't know if somehow there is still air in the system although nothing is coming out. I am just scared of having to use the breaks and they are not working as they should.

    It might be a silly thing that I missed or this is the normal behaviour. Thank you guys for any tip.

    Rear brake is kinda weird with new brake pads-sca_291149_hi-res-jpg
    Rear brake is kinda weird with new brake pads-img_20180220_210702_640-jpg

  2. #2
    Junior Member
    Bike: 2015 NC700x
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    Quote Originally Posted by whiiiskyy View Post
    Hi guys,

    Last weeks I've spent some time cleaning and lubricating the clutch cable, callipers, pistons --- it has 3 in the front --- installing new brake pads. My bike now feels like you are riding a brand new 2020. So far so good.
    I've had this 2013 Honda NC700SA for more than a year now and I don't know if I got used to everything being tight as the bike system was messy and dirty.

    The problem with the rear brake is that It depends on the speed when I press the hear brake first slowly my foot goes all the way down and it seems like it is not working. If instead of keeping my foot I start to pump it 2 or 3x, then it starts breaking hard.
    If I press the front one first and then the rear one, it breaks hard and starts getting soft.
    If I press it abruptly, it gets pretty hard and works as expected then gets soft

    The ABS system has some kind of little tank above the engine to release the pressure from the brakes. When I press the front one, you can hear a little air noise, but when I press the hear one you can hear I loud one at some point.
    I already checked the system and there is no bubbles, no air so again I don't know if because of the fact that everything was a mess, dirty as **** and I got used to everything being tight and now everything is smooth I am kinda lost about what is the normal behaviour.
    I don't know if somehow there is still air in the system although nothing is coming out. I am just scared of having to use the breaks and they are not working as they should.

    It might be a silly thing that I missed or this is the normal behaviour. Thank you guys for any tip.

    Rear brake is kinda weird with new brake pads-sca_291149_hi-res-jpg
    Rear brake is kinda weird with new brake pads-img_20180220_210702_640-jpg
    How many miles since the rear brake reservoir and caliper was rebuilt with new seals, springs and o-rings?

  3. #3
    Senior Member Rear brake is kinda weird with new brake pads dduelin's Avatar
    Bike: NC700XD, ST1300, Elite 80
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    A soft pedal or lever that hardens up with 2 or 3 pumps generally indicates air in the system. You did use the service manual for the correct sequence of bleeding linked brakes particular to your model?
    Dave

    GL1800
    NC700XD




  4. #4
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    Quote Originally Posted by Jeffro View Post
    How many miles since the rear brake reservoir and calliper was rebuilt with new seals, springs and o-rings?
    Everything was in great condition, just dirty, no need for "install NEW of everything culture"
    The job was done last Sunday and I only use the bike to go to work so 14km per day.

  5. #5
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    Quote Originally Posted by dduelin View Post
    A soft pedal or lever that hardens up with 2 or 3 pumps generally indicates air in the system. You did use the service manual for the correct sequence of bleeding linked brakes particular to your model?
    I will bleed the system to see if any air comes out but as I said, there are no more bubbles. There is no wrong sequence of bleeding. I have done it before with a Honda CTX700 which shares the same engine as the NC700. Only this time things are just not quite right.

  6. #6
    Senior Member Rear brake is kinda weird with new brake pads dduelin's Avatar
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    Quote Originally Posted by whiiiskyy View Post
    I will bleed the system to see if any air comes out but as I said, there are no more bubbles. There is no wrong sequence of bleeding. I have done it before with a Honda CTX700 which shares the same engine as the NC700. Only this time things are just not quite right.
    I'm not sure about the AU market but in the USA and Europe the CTX700 came out in 2014. NC700 series bikes built in 2012-2013 have linked brakes with a different bleed sequence than 2014 and later bikes. But I'm sure you know all about that.

    A clue is you mentioned a 3 piston front caliper, it will have two bleed valves on 2012-13s. Non-linked brake bikes have a 2 piston front caliper with 1 bleeder, 2013 and later. There is a different bleed sequence for 2 piston and 3 piston front calipers.
    Dave

    GL1800
    NC700XD




  7. #7
    Junior Member
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    Quote Originally Posted by dduelin View Post
    I'm not sure about the AU market but in the USA and Europe the CTX700 came out in 2014. NC700 series bikes built in 2012-2013 have linked brakes with a different bleed sequence than 2014 and later bikes. But I'm sure you know all about that.

    A clue is you mentioned a 3 piston front caliper, it will have two bleed valves on 2012-13s. Non-linked brake bikes have a 2 piston front caliper with 1 bleeder, 2013 and later. There is a different bleed sequence for 2 piston and 3 piston front calipers.
    Last night I went to check the bike and guess what?? The linked valve was full of air. Now the brake is working like I have never seen before.
    Thank for your reply, it was the key to send me in the right direction

  8. #8
    Senior Member Rear brake is kinda weird with new brake pads dduelin's Avatar
    Bike: NC700XD, ST1300, Elite 80
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    Quote Originally Posted by whiiiskyy View Post
    Last night I went to check the bike and guess what?? The linked valve was full of air. Now the brake is working like I have never seen before.
    Thank for your reply, it was the key to send me in the right direction
    That’s awesome. We are glad to help.
    Dave

    GL1800
    NC700XD




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