Home Forums Tech Talk Bleeding your brakes

This topic contains 4 replies, has 4 voices, and was last updated by  FREDDY SANDOVAL 3 years, 5 months ago.

  • Author
  • #40730

    Vincent Ciolino

    How often should you have to bleed your brake system on a Micro Max kart?

  • #40737

    tony zambos

    When you need to. I know that’s vague but no one out here can really tell you. But here is a starting point. First, check for pad wear. If the pads are worn too much or worn unevenly, replace them. Uneven wear indicates a problem between the caliper and pads. Then squeeze the brake pedal against the front nerf bar. The pedal should not touch the nerf and should not creep forward as you maintain pressure. Now bleed the brakes and test the pedal travel again. Use ONLY the brake fluid approved for your brake system. When the pedal starts to travel more or the pedal does not seen as firm, bleed again.
    We come from road racing a Sn Rotax and I bleed ours before every race weekend and checked the pedal travel several times during the weekend.
    Be safe and have fun.

    LAD Specialties customer / tony kart / rotax / kt100

  • #40778

    Vincent Ciolino

    Thanks for the info Tony.  I find I am having to bleed them every race/practice.  I swapped out the seals this off season so I was hoping that would reduce the need but even with it sitting for a week or two they still need bleeding.

  • #40782

    Randy McKee

    A common problem… mushy brakes that is.  When you replaced the seals, did you do the caliper as well as the master cyl?

    You may have a very tiny leak near a fitting on the brake lines.  Those are tough to find, and it doesn’t take very much air getting sucked-in to cause mushy/fading brakes.

  • #40793


    Usually when your master cylinder starts to bypass internally, so does the caliper seals.

    I always rebuild the whole system

    And yes, it is very  possible to have a small leak or hairline crack at the line fittings, check   those too.

    We always check the braking system, before we check our power plant, brakes should be the first thing to check before a track day, as a safety rule.

    Always flush and bleed hydraulic brakes.

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