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FJR Motorcycle Forums
Technical & Mechanical Problems
Stuck on Rear ABS Bleed Procedure
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<blockquote data-quote="Dale_I" data-source="post: 1455459" data-attributes="member: 92814"><p>I've used SpeedBleeders and a Mighty-Vac on an AE model. I might suggest trying it again.</p><p></p><p>Make sure the brake is off (at-rest). Make sure the SpeedBleeder has been turned out between 1/2 and 1 turns (still needs to be loosened to operate and tightened to lock it). Make sure the cap is off and you have fresh fluid in the rear reservoir. Apply vacuum until you overcome the spring tension on the check ball inside the SpeedBleeder. Front right lower first, then rear.</p><p></p><p>Above, you said you have been at 25 psi, and mentioned pressure, I assume you meant vacuum and inches of Hg, which is what the Mighy-Vac uses on its gauge. Applying pressure will only lock the ball in the seat more tightly.</p><p></p><p>Don't be afraid to go over 25 in Hg of vacuum... I think I opened up the check-ball at 26 to 28 in Hg. You are correct in not having the patience to wait. If you haven't overcome the spring tension with vacuum it simply will not open. SpeedBleeders will not allow reverse-flow (pressure) bleeding.</p><p></p><p>If you hit 32 or 33 in Hg in vacuum and the SpeedBleeder hasn't opened, post back. It may be an issue with a bleeder valve, but I've never heard of one going bad.</p></blockquote><p></p>
[QUOTE="Dale_I, post: 1455459, member: 92814"] I've used SpeedBleeders and a Mighty-Vac on an AE model. I might suggest trying it again. Make sure the brake is off (at-rest). Make sure the SpeedBleeder has been turned out between 1/2 and 1 turns (still needs to be loosened to operate and tightened to lock it). Make sure the cap is off and you have fresh fluid in the rear reservoir. Apply vacuum until you overcome the spring tension on the check ball inside the SpeedBleeder. Front right lower first, then rear. Above, you said you have been at 25 psi, and mentioned pressure, I assume you meant vacuum and inches of Hg, which is what the Mighy-Vac uses on its gauge. Applying pressure will only lock the ball in the seat more tightly. Don't be afraid to go over 25 in Hg of vacuum... I think I opened up the check-ball at 26 to 28 in Hg. You are correct in not having the patience to wait. If you haven't overcome the spring tension with vacuum it simply will not open. SpeedBleeders will not allow reverse-flow (pressure) bleeding. If you hit 32 or 33 in Hg in vacuum and the SpeedBleeder hasn't opened, post back. It may be an issue with a bleeder valve, but I've never heard of one going bad. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Stuck on Rear ABS Bleed Procedure
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