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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS & Rear brake issue- Post front caliper rebuild
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<blockquote data-quote="WellWell" data-source="post: 1471040" data-attributes="member: 29030"><p>Hello experienced wrenches</p><p></p><p>The front caliper pistons were frozen and needed a puck and seal service. The calipers were disconnected from the lines</p><p>and were open for a week . While parts were coming in, all the fluid drained from the master cylinder. After rebuilding and installing the calipers, the front lines were replenished and purged of air.</p><p></p><p>BUT in this service, the rear brakes captured air and needed purging. After a fluid change and air purge, it appears the rear (not the front) brake does not want to function properly and appears to capture air somewhere in the system even though there in no air bubbles coming out of the exit brake bleed line. </p><p></p><p> Also the ABS light also flashes and shines when placed in various gears (bike on center stand).. the ABS light has never illuminated during tests while on the center stand</p><p></p><p>I am speculating that air has been trapped in the ABS pump and needs some type of purging that is not shown in the factory manual. ( if it is, send the page !)</p><p></p><p>Experience wrenches and good readers, what is the next step?</p><p></p><p></p><p>WW</p></blockquote><p></p>
[QUOTE="WellWell, post: 1471040, member: 29030"] Hello experienced wrenches The front caliper pistons were frozen and needed a puck and seal service. The calipers were disconnected from the lines and were open for a week . While parts were coming in, all the fluid drained from the master cylinder. After rebuilding and installing the calipers, the front lines were replenished and purged of air. BUT in this service, the rear brakes captured air and needed purging. After a fluid change and air purge, it appears the rear (not the front) brake does not want to function properly and appears to capture air somewhere in the system even though there in no air bubbles coming out of the exit brake bleed line. Also the ABS light also flashes and shines when placed in various gears (bike on center stand).. the ABS light has never illuminated during tests while on the center stand I am speculating that air has been trapped in the ABS pump and needs some type of purging that is not shown in the factory manual. ( if it is, send the page !) Experience wrenches and good readers, what is the next step? WW [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS & Rear brake issue- Post front caliper rebuild
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