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Front Brake Bleed
OK, so I noticed my sight glass for the front brake master cylinder was weeping after having the brakes serviced.

I happen to have a parts bike that only had 22,000 miles on it when I got it so I decided to use the master cylinder from it and swap it out. First had the master rebuild kit done at Venco Wings. Today I tackled the replacement.

I have never bled brakes before but listened to Jim from Venco and read several threads on the procedure. I was using a Mighty Vac and eventually got some feel in the brake lever. Not quite as firm as when Jim did it but nonetheless adequate.

I could only move the bike about 20 ft at a time in the garage as it was a balmy 15 degrees outside and we'd had a dusting of snow last night. After assuring myself that the brake was indeed working after several back and forths with it running I had a thought. When I did the clutch earlier I tied off the clutch lever overnight to do a "final bleed" for bubbles as recommended by jim and others.

My question is, will this also work with the brake lever? I figured it can't hurt and if I feel the need for more firmness I can always take it to Jim to "fine tune" it so to speak.

Thoughts, comments?
Glenn Clave

"If it's too big to eat in one sitting you probably shouldn't run over it"

85/84 "AspenState" Senior-Gray metallic (Sold but not forgotten)
2001 GL1800 Apollo Blue
#1 01-26-2013, 01:15 PM,
Yes, it works the same as the clutch, and the gravity will bleed the line. but if you want to end your headache just replace the bleed valves with speed bleeders..they have a one way check valve build into you just open them alittle and pump the master and the air goes out, but doesn't get back in. I replaced all of my brake calipers as well as the clutch with them.
Hillsboro, Oregon
#2 01-26-2013, 01:53 PM,
I am presuming your bleeding the left side disk (riding position)
I have never used a mighty vac, bleeding the brakes per Honda manual, never had problems.
I now use speed bleeders.
There maybe air in the master cylinder but from what people say using the mighty vac "they have no problems"

Myself, I would place rags under the master cylinder and crack open the banjo bolt and bleed out any bubbles that are present using the usual bleeding procedures.

If I waited till overnight I would forget what I was doing the next day Smile
The only stupid questions are the one's that are not asked.

#3 01-26-2013, 02:00 PM,
Thanks for the thoughts. I have the speed bleeders purchased,but,not installed yet. Tricky, I did prime the master cylinder using my finger, then later did do a bleed at the banjo bolt. It just didn't squirt out with as much pressure as when I did the clutch last month.

Like I say, I have brake, maybe I should leave it at thatBlush
Glenn Clave

"If it's too big to eat in one sitting you probably shouldn't run over it"

85/84 "AspenState" Senior-Gray metallic (Sold but not forgotten)
2001 GL1800 Apollo Blue
#4 01-26-2013, 03:42 PM,

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