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FJR Motorcycle Forums
Technical & Mechanical Problems
Rear caliper locked up when braking hard. now rear doesn't work, 2007 FJR
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<blockquote data-quote="snyderej" data-source="post: 1463509" data-attributes="member: 86550"><p>I wanted to finish this thread with the issue and resolution. Yamaha ABS module can be bled using techniques described in other threads and trying to do this with the original ABS module which consists of 3 solenoids mounted to the module worked on one of the three (Front) but made no noise on the others. After checking ohms on the solenoids which appeared to be close but the 2 that would not function were different. I ordered a used unit on ebay and it came in with one bad solenoid (just my luck) so ordered another and that cured it. The solenoid either fails or gets something stuck in it and acts as a check valve when it fails. It will allow fluid to pass but not relieve back to the master which keeps pressure in the line to the caliper. Nothing you can do once it's really locked up except loosen the bleeder relieving the pressure and don't touch that brake until you get home.</p></blockquote><p></p>
[QUOTE="snyderej, post: 1463509, member: 86550"] I wanted to finish this thread with the issue and resolution. Yamaha ABS module can be bled using techniques described in other threads and trying to do this with the original ABS module which consists of 3 solenoids mounted to the module worked on one of the three (Front) but made no noise on the others. After checking ohms on the solenoids which appeared to be close but the 2 that would not function were different. I ordered a used unit on ebay and it came in with one bad solenoid (just my luck) so ordered another and that cured it. The solenoid either fails or gets something stuck in it and acts as a check valve when it fails. It will allow fluid to pass but not relieve back to the master which keeps pressure in the line to the caliper. Nothing you can do once it's really locked up except loosen the bleeder relieving the pressure and don't touch that brake until you get home. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Rear caliper locked up when braking hard. now rear doesn't work, 2007 FJR
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