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Brake problems
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<blockquote data-quote="SRAD97750" data-source="post: 202342" data-attributes="member: 425"><p>Open the master cylinder cap and set the bars so the reservoir is level-ish. Fill it with fresh brake fluid without spilling.</p><p>I like to get a clear hose long enough to reach the ground, but not much more. Attach one end to the bleed valve nipple <img src="https://www.dirtbikeaddicts.com/static/images/smilies/smirk.gif" class="smilie" loading="lazy" alt=":smirk:" title="Smirk :smirk:" data-shortname=":smirk:" /> and the other end you put into a bottle, with an inch or so of brake fluid in it, submerging the tip<img src="https://www.dirtbikeaddicts.com/static/images/smilies/smirk.gif" class="smilie" loading="lazy" alt=":smirk:" title="Smirk :smirk:" data-shortname=":smirk:" />.</p><p>Then pump the lever a bit, hold the lever to the bar, and crack the bleed valve. Some fluid should come out into the hose. If not, close the bleed valve and pump the lever again, hold it to the bar, crack the bleed valve and repeat until there is some fluid in the hose from the bleed valve.</p><p>Once you have an inch of fluid in the hose from the caliper side and the other tip is submerged, there is no way to suck more air into the system. Unless you let the master cylinder reservoir run low.<img src="https://www.dirtbikeaddicts.com/static/images/smilies/prof.gif" class="smilie" loading="lazy" alt=":prof:" title="Professor :prof:" data-shortname=":prof:" /></p><p>BE SURE TO TOP OFF THE RESERVOIR REGULARLY.</p><p>Leave the bleed valve open and slowly pump the lever while tapping the brake hose. Fluid should flow through the hose into the bottle. Air trapped in the system will make it spurt or jump about.<img src="https://www.dirtbikeaddicts.com/static/images/smilies/smirk.gif" class="smilie" loading="lazy" alt=":smirk:" title="Smirk :smirk:" data-shortname=":smirk:" /> Air can also make the fluid look hazy. Air bubbles will rise through the master cylinder when you release the lever. These are all excellent signs you are purging the air from the system.</p><p>Continue pumping fluid through the system, tapping the brake hose, until it is clean and clear with no bubbles.</p><p>BE SURE TO TOP OFF THE RESERVOIR REGULARLY. Close the valve and check the system builds pressure against the rotors.</p><p></p><p>Usually one or two rounds of fluid exchange gets all the air out of even the trickiest systems.-BIG DAN<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p></blockquote><p></p>
[QUOTE="SRAD97750, post: 202342, member: 425"] Open the master cylinder cap and set the bars so the reservoir is level-ish. Fill it with fresh brake fluid without spilling. I like to get a clear hose long enough to reach the ground, but not much more. Attach one end to the bleed valve nipple :smirk: and the other end you put into a bottle, with an inch or so of brake fluid in it, submerging the tip:smirk:. Then pump the lever a bit, hold the lever to the bar, and crack the bleed valve. Some fluid should come out into the hose. If not, close the bleed valve and pump the lever again, hold it to the bar, crack the bleed valve and repeat until there is some fluid in the hose from the bleed valve. Once you have an inch of fluid in the hose from the caliper side and the other tip is submerged, there is no way to suck more air into the system. Unless you let the master cylinder reservoir run low.:prof: BE SURE TO TOP OFF THE RESERVOIR REGULARLY. Leave the bleed valve open and slowly pump the lever while tapping the brake hose. Fluid should flow through the hose into the bottle. Air trapped in the system will make it spurt or jump about.:smirk: Air can also make the fluid look hazy. Air bubbles will rise through the master cylinder when you release the lever. These are all excellent signs you are purging the air from the system. Continue pumping fluid through the system, tapping the brake hose, until it is clean and clear with no bubbles. BE SURE TO TOP OFF THE RESERVOIR REGULARLY. Close the valve and check the system builds pressure against the rotors. Usually one or two rounds of fluid exchange gets all the air out of even the trickiest systems.-BIG DAN:thumb: [/QUOTE]
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