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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: 1294653" data-attributes="member: 86550"><p>Coming home the other day I was filtering and had to hit my brakes hard for someone changing lanes without looking first for the random motorcycle (usually an out of state person). As a side note, if you have never filtered like we do here in California, I assure you, it is the safest way to ride. The traffic here in northern CA is so bad, it makes Atlanta look like an easy commute and I moved from Atlanta thinking that was the worst place for traffic.. ever... The difference is here I just ignore the 5 mile standstill and ride the middle. Anyway, I hit my brakes once in Atlanta and the rear locked up (not totally, more like I was pressing it and it was slowing the bike down but I wasn't). I began pressing it on and off and after a couple tries it freed up, almost like a pebble got stuck in the rear caliper piston then fell out. No problems for 1-1.5 years (this is secondary bike), then I slammed on the brakes due to the lane changer and it did it again, I tried the rear brake on off routine and after no success and a dragging rear brake I found the first exit and got off. Lucky it was my exit so after an hour sitting the glowing red disc was normal temp and the caliper seemed to be loose again so I headed home. I quickly discovered I had no rear brake and the fronts seemed spongy. I tried bleeding it but no fluid except a small amount that drained by itself initially came out. I then took the rear caliper off the bike and tried pressing the rear brake but no matter how hard I pressed nothing came out. It's like the fluid is not making it through the unit that sends some of the fluid up to the front caliper and to the rear, like it's blocked or not allowing fluid to travel to the rear caliper. I get NO fluid no matter how hard I press down on the rear brake, reservoir is full. I can kinda tell the rear brake arm isn't traveling as far as it would normally (it does move, just feels like it stops sooner, like the fluid has nowhere to go) travel so that kinda jives with no fluid coming out of the brake line. Has anyone seen this and what resolved it? It's not the caliper, it's gotta be the cylinder or the controller thing, whatever that is called. Let me know if you can help me out.</p></blockquote><p></p>
[QUOTE="snyderej, post: 1294653, member: 86550"] Coming home the other day I was filtering and had to hit my brakes hard for someone changing lanes without looking first for the random motorcycle (usually an out of state person). As a side note, if you have never filtered like we do here in California, I assure you, it is the safest way to ride. The traffic here in northern CA is so bad, it makes Atlanta look like an easy commute and I moved from Atlanta thinking that was the worst place for traffic.. ever... The difference is here I just ignore the 5 mile standstill and ride the middle. Anyway, I hit my brakes once in Atlanta and the rear locked up (not totally, more like I was pressing it and it was slowing the bike down but I wasn't). I began pressing it on and off and after a couple tries it freed up, almost like a pebble got stuck in the rear caliper piston then fell out. No problems for 1-1.5 years (this is secondary bike), then I slammed on the brakes due to the lane changer and it did it again, I tried the rear brake on off routine and after no success and a dragging rear brake I found the first exit and got off. Lucky it was my exit so after an hour sitting the glowing red disc was normal temp and the caliper seemed to be loose again so I headed home. I quickly discovered I had no rear brake and the fronts seemed spongy. I tried bleeding it but no fluid except a small amount that drained by itself initially came out. I then took the rear caliper off the bike and tried pressing the rear brake but no matter how hard I pressed nothing came out. It's like the fluid is not making it through the unit that sends some of the fluid up to the front caliper and to the rear, like it's blocked or not allowing fluid to travel to the rear caliper. I get NO fluid no matter how hard I press down on the rear brake, reservoir is full. I can kinda tell the rear brake arm isn't traveling as far as it would normally (it does move, just feels like it stops sooner, like the fluid has nowhere to go) travel so that kinda jives with no fluid coming out of the brake line. Has anyone seen this and what resolved it? It's not the caliper, it's gotta be the cylinder or the controller thing, whatever that is called. Let me know if you can help me out. [/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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