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Old July 29th, 2014, 08:30 PM   #1
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Default 1985 V65 Bleeding front brakes.

I have tried for hours
-Bled master cylinder by pumping and cracking the banjo bolt
-Bled both banjo bolts at junction block on forks(furthest first)
-Bled both Calipers(furthest first)

Still have to pump it a few times, to get OK brakes, not even good brakes.
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Old July 29th, 2014, 09:19 PM   #2
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Open up the cap on the master cylinder and undo both the the caliper bleeder valves and let it gravity bleed for about 5 minutes, both at the same time, while adding brake fluid to the master. if it still seems like you had air in the lines after that, bleed them like you regularly would. If that doesn't work, you need to vacuum bleed it or reverse bleed it.

If nothing above works you need a new master cylinder

Hope this helps
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Old July 29th, 2014, 09:23 PM   #3
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I've always had the best luck with pressure or vacuum bleeding. Sole reason I bought a mighty vac. One person brakes and motorcycle brakes.
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Old July 29th, 2014, 10:06 PM   #4
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My buddy and I had the same issues on his V-65...............ultimately used a mighty vac hand vacuum pump to get results.
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Old July 29th, 2014, 11:06 PM   #5
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Quote:
Originally Posted by Alex456123 View Post
Open up the cap on the master cylinder and undo both the the caliper bleeder valves and let it gravity bleed for about 5 minutes, both at the same time, while adding brake fluid to the master. if it still seems like you had air in the lines after that, bleed them like you regularly would. If that doesn't work, you need to vacuum bleed it or reverse bleed it.

If nothing above works you need a new master cylinder

Hope this helps
I let it gravity bleed for over 2 hours without losing a drop
in the master
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Originally Posted by koochman450r View Post
I've always had the best luck with pressure or vacuum bleeding. Sole reason I bought a mighty vac. One person brakes and motorcycle brakes.
Tried vacuum bleeding, no luck, and for some reason my couple month old mitivac won't make pressure to try an back bleed it.

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Originally Posted by jeepnxj96 View Post
My buddy and I had the same issues on his V-65...............ultimately used a mighty vac hand vacuum pump to get results.
Tried it, didn't work.
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Old July 29th, 2014, 11:11 PM   #6
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Clamp off brake hoses. If you suddenly have a rock hard brake handle, the problem is in the calipers. If the handle is still spongy, suspect bad master cylinder.
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Old July 29th, 2014, 11:27 PM   #7
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Quote:
Originally Posted by Nuggets View Post
Clamp off brake hoses. If you suddenly have a rock hard brake handle, the problem is in the calipers. If the handle is still spongy, suspect bad master cylinder.
ok thanks.
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Old July 29th, 2014, 11:32 PM   #8
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I think i already have them good enough to sell . Now if I can adjust the carbs and get them synced with the tool I bought today, the price will jump $300
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Old July 30th, 2014, 10:33 AM   #9
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Well, in the end im just a dumbass, one of the banjo fittings at the junction has a small leak
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