Join Date: Jun 2010
Location: Broadripple, Indiana, USA
Make: Goldwing SE
Model: 1996 GL1500SE
One of the things about the front-rear brake system is that air will get caught in the front line because it goes down the up then down. The trick I have told others is to get a one-man Bleeder from somewhere like AutoZone. Then put something heavy on the brake pedal pushing it all the way down or tie it down. I just use a sledge hammer and let it sit for 5 or 6 hours. What you will notice is that usually a large air bubble will be in the one-man brake bleeder hose. Ok some things I forgot to say put the one-man bleeder on the bike but tie it up so it is above the caliper and open the valve so the fluid will flow into the hose. Always bleed the front brake first then the back truly it works much better if you do so.
As for the front brake open the reservoir use paper towels to get all the fluid out then clean out all the black junk you will find in the bottom of the reservoir. Then fill it back up with new fluid and bleed the brakes. A lot of the gunk finds its way back up the lines into the reservoir and that can end up plugging the return hole. When you bleed the front brake all you do is push that gunk into the hose and believe me it will percolate back into the reservoir.
I actually recommend to all Wingers I know to empty the reservoir and clean it at the beginning of every riding season. Then you just fill it back up with clean fluid and let it sit for 10 to 20 minutes any air will percolate back up into and there is no need to bleed the brakes, But whatever you do don't pull the brake lever until at least 10 to 20 minutes have passed!!!
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