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Question:

i have a problem with my motorcycle front brake?

i haven‘t been able to get the front brake working right. The caliper won‘t release all the way which causes the brake to drag. So far I have put a new caliper on and changed the brake fluid and bleed it but that still didn‘t solve the problem. If you could give me any input at all I would really appreciate it.

Answer:

material that conducts heat and electricity are known as good conductor of heat and electricity .example metal. by salina musyaju
If a brand new caliper didn’t solve it then the problem is more than likely with the disc or the mounting on the fork legs. Seems an expensive way of going about it though, a full strip and service of the old caliper, replacing the o-rings, bleed nipple and a thorough flush with new clean brake fluid would probably give the same result as a new one.
I'm surprised nobody mentioned the master cylinder. I need to overhaul mine because it acts exactly like yours. I suspect it's the little return orfice that's plugged. If you can grasp the disc with your fingers and use your palms or thumbs to push the caliper toward the disc and it releases the disc, then it's the master cylinder. If you can't compress it or it's really hard to do and you're absolutely sure it's not the piston stuck, then it could be an old brake hose that with age has swelled internally and restricts the flow of fluid back to the master cylinder. I've had that problem several times on old cars and trucks. One way to tell is to pump the brake lever so that the brake is really tight and then slightly loosen the banjo bolt that holds the brake hose against the master cylinder. If none or very little fluid leaks out but fluid under pressure exits the banjo bolt at the caliper, then you know it's the hose. If it exits under pressure at the master cylinder, that's the problem.
Could be that the brake cable is stuck or rusted. Replace it. Hope this helps.
a material is said to be a good conductor of heat and electricity if it have a high linear expansivity to heat and low resistivity to electric current
a material is said to be a good conductor of heat and electricity if it have a high linear expansivity to heat and low resistivity to electric current
material that conducts heat and electricity are known as good conductor of heat and electricity .example metal. by salina musyaju
If a brand new caliper didn’t solve it then the problem is more than likely with the disc or the mounting on the fork legs. Seems an expensive way of going about it though, a full strip and service of the old caliper, replacing the o-rings, bleed nipple and a thorough flush with new clean brake fluid would probably give the same result as a new one.
I'm surprised nobody mentioned the master cylinder. I need to overhaul mine because it acts exactly like yours. I suspect it's the little return orfice that's plugged. If you can grasp the disc with your fingers and use your palms or thumbs to push the caliper toward the disc and it releases the disc, then it's the master cylinder. If you can't compress it or it's really hard to do and you're absolutely sure it's not the piston stuck, then it could be an old brake hose that with age has swelled internally and restricts the flow of fluid back to the master cylinder. I've had that problem several times on old cars and trucks. One way to tell is to pump the brake lever so that the brake is really tight and then slightly loosen the banjo bolt that holds the brake hose against the master cylinder. If none or very little fluid leaks out but fluid under pressure exits the banjo bolt at the caliper, then you know it's the hose. If it exits under pressure at the master cylinder, that's the problem.
Could be that the brake cable is stuck or rusted. Replace it. Hope this helps.

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