Maintenance & Technical > KX250 / KX125
2004 KX 125 Rebuild
DP3601:
I just replaced the front brake line with a steel braided line. I have been doing the bleeding process to get the air out but I am not getting the brake to pump up with any pressure. There is brake fluid running through the system and no air bubbles are coming out now. Does anyone have any ideas on what I might be doing wrong or what the issue could be?
Foxx4Beaver:
sometimes the fronts can take bit to pump up....I like to gravity bleed them for several minutes 1st, by loosening the bleeder, then just keep pouring fluid into the reservoir for a while, and let it run out into a clean jar from the bleeder....just don't let the reservoir go empty.
then after a few minutes of that, they'll usually pump up fairly quick.
DP3601:
--- Quote from: Foxx4Beaver on October 15, 2016, 12:44:37 PM ---sometimes the fronts can take bit to pump up....I like to gravity bleed them for several minutes 1st, by loosening the bleeder, then just keep pouring fluid into the reservoir for a while, and let it run out into a clean jar from the bleeder....just don't let the reservoir go empty.
then after a few minutes of that, they'll usually pump up fairly quick.
--- End quote ---
Worked like a charm! I should have ask sooner and saved myself an hour. Thanks again
Foxx4Beaver:
:wink:
It's the only method I use ...on bikes, cars/trucks.
The plunger in the master is so small, that it takes forever to pump out all those tiny, tiny bubbles.
I do the rears the same way...but it's a bit more involved...as you need to put the bike on a stand, remove the rear wheel, and slide the caliper off the carrier, then rest the caliper on a brick/piece of wood , or whatever you have to keep the caliper from hangin by just the hose.
144rider:
--- Quote from: umberto on August 23, 2016, 03:36:21 AM ---Two millimeters can make a pretty big difference. It should slow the steering down and make the bike more stable. Some models benefit greatly from this (such as the KX250F with 22 mm clamps), while others really change for the negative. Of course it really depends on where you ride and what you want to accomplish. My two cents would be if you like the bike now for the riding you are doing, don't make the change.
Maybe KXDino has some more info on this. He is very knowledgeable on different frames and years.
--- End quote ---
Going from a 25mm offset to a 23mm offset will have the opposite effect from what you describe.
The steering will be quicker and the bike will be less stable down long high speed straights and through braking bumps to the point you might experience head shake.
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