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GeorgeRYoung · March 23rd, 2014, 06:32 AM

Make sure the two little holes at the bottom of the master cylinder are clear, a toothpick works well. Considering you have been bleeding the system, they're probably clear already.

Turn the bars so the master cylinder is at its highest point.

With the caliper bleed valve CLOSED, gently squeeze the brake lever until you see some bubbles rise up through the holes in the master cylinder. Let the brake lever snap back. Shoogle the bars back and forth a bit. Repeat until you see no more bubbles.

In my opinion, the caliper bleed valve is only to release air trapped in the caliper that can't rise to the top. Gravity makes bubbles in the line rise. It has always seemed counter productive to try to chase line bubbles out the bottom. And, yes, I've done this multiple times, starting with new empty lines, and it works for me.

March 23rd, 2014, 06:32 AM	#3
GeorgeRYoung ninjette.org member Name: George Location: Ottawa, Canada Join Date: Jun 2011 Motorcycle(s): EX250, C10 Concours Posts: 109	Another method to try Make sure the two little holes at the bottom of the master cylinder are clear, a toothpick works well. Considering you have been bleeding the system, they're probably clear already. Turn the bars so the master cylinder is at its highest point. With the caliper bleed valve CLOSED, gently squeeze the brake lever until you see some bubbles rise up through the holes in the master cylinder. Let the brake lever snap back. Shoogle the bars back and forth a bit. Repeat until you see no more bubbles. In my opinion, the caliper bleed valve is only to release air trapped in the caliper that can't rise to the top. Gravity makes bubbles in the line rise. It has always seemed counter productive to try to chase line bubbles out the bottom. And, yes, I've done this multiple times, starting with new empty lines, and it works for me.