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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS Trouble
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<blockquote data-quote="HaulinAshe" data-source="post: 1391998" data-attributes="member: 1875"><p>This problem as you describe it sounds very concerning to me. Because my gut says there is a side-play or alignment problem. The slight pressure of rear brake only is causing a shift of rear wheel or rear brake components to induce a sensor variation.</p><p></p><p>I would check ALL the rear axle components for things like the spacer washer. Check the caliper arm assembly carefully. Make sure the pivot bolt at the front is the proper size and some dumbass at the dealer didn't substitute a 6mm bolt in its place during a tire change. Basically make sure the wheel, wheel bearings, spacers and various securing bolts for the rear wheel and rear caliper assembly are all correct and there's no play/slop anywhere.</p><p></p><p>And check for any metal or sludge buildup on/around both ABS sensors. It only takes a tiny bit of metal to significantly change the response of an ABS sensor. For some reason they aren't agreeing with each other.</p></blockquote><p></p>
[QUOTE="HaulinAshe, post: 1391998, member: 1875"] This problem as you describe it sounds very concerning to me. Because my gut says there is a side-play or alignment problem. The slight pressure of rear brake only is causing a shift of rear wheel or rear brake components to induce a sensor variation. I would check ALL the rear axle components for things like the spacer washer. Check the caliper arm assembly carefully. Make sure the pivot bolt at the front is the proper size and some dumbass at the dealer didn't substitute a 6mm bolt in its place during a tire change. Basically make sure the wheel, wheel bearings, spacers and various securing bolts for the rear wheel and rear caliper assembly are all correct and there's no play/slop anywhere. And check for any metal or sludge buildup on/around both ABS sensors. It only takes a tiny bit of metal to significantly change the response of an ABS sensor. For some reason they aren't agreeing with each other. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS Trouble
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