UK no-sign up Motorcycle Home Mechanic Guide - Manual / Resource - Page 19
Using a brake bleeding kit
The advantage of using a brake bleeding kit is that the check valve in
its hose prevents aerated fluid being drawn back into the caliper bleed
valve.
1 To bleed air from the rear brake system, fit the ring spanner to the
bleed valve hex and connect the hose. Take note of the arrow on the
check valve and make sure you fit it correctly.
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