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Old September 6th, 2017, 04:07 PM   #1
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rear brake lever, too much play

I recently noticed a lot of play in the rear brake pedal. Is there a simple adjustment? The fluid level is in the normal range, and the pads are fine. Thanks in advance for any advice.

Warren
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Old September 6th, 2017, 05:52 PM   #2
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If you take a look bear the back of the pedal there is an adjustment screw
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Old September 6th, 2017, 06:14 PM   #3
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Thanks, I checked that out, and looked at a couple of videos, think I have the solution.
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Old September 6th, 2017, 08:01 PM   #4
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Wmac do you have links to the vids? Mine 939 has a lot of play also and I haven't been able to find any vids...Thanks!
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Old September 7th, 2017, 10:55 AM   #5
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I had a lot of play in my rear brake lever as well and it also feels "soft". When I adjusted out the play, the rear brake would start putting pressure on the rotor after a few miles until it was almost locking up and I had to pull over and loosen the brake lever adjuster. I have adjusted it in the garage a few times to still have it lock up after a few miles. To make a long story short, I have had to leave play in the rear lever.

I tried bleeding the rear brake, but it still feels soft. Any suggestions?

CAMM
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Old September 7th, 2017, 10:57 AM   #6
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Note that the rear master cylinder plunger has some free play in it you need to adjust out with the lock nuts on the linkage thing.

Also, you must remove the caliper and rotate it up to properly bleed it so that the bleed valve is vertical.
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Old September 7th, 2017, 04:58 PM   #7
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Quote:
Originally Posted by kuksul08 View Post
Note that the rear master cylinder plunger has some free play in it you need to adjust out with the lock nuts on the linkage thing.

Also, you must remove the caliper and rotate it up to properly bleed it so that the bleed valve is vertical.
That is good information! Highly recommended to follow.
Apparently, the PO of my bike did not know this procedure, and he, along with one or two Ducati mechanics, screwed around with various adjustments on my rear brake to the point where NOTHING helped. Basically, they broke it!

In the end, they had to replace the master cylinder completely and then do the
above procedure correctly to get to perform well. Now, it's fine.
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Old September 7th, 2017, 07:35 PM   #8
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Geeze, I'm going to leave mine alone. It doesn't bother me that much.
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Old September 8th, 2017, 08:06 AM   #9
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Quote:
Originally Posted by Hyp Noob View Post
That is good information! Highly recommended to follow.
Apparently, the PO of my bike did not know this procedure, and he, along with one or two Ducati mechanics, screwed around with various adjustments on my rear brake to the point where NOTHING helped. Basically, they broke it!

In the end, they had to replace the master cylinder completely and then do the
above procedure correctly to get to perform well. Now, it's fine.
Good god, your Ducati mechanics must be very dimwitted to be that incapable of adjusting a brake lever. It isn't that difficult.
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Old September 8th, 2017, 01:05 PM   #10
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Good god, your Ducati mechanics must be very dimwitted to be that incapable of adjusting a brake lever. It isn't that difficult.
It gets worse. In the process of removing the MS ... they stripped out the Alu frame piece where the pedal and other things hang on. Guy used a Rattle Gun,
ruined whole frame piece, which had to be replaced.

Now you guys see why I'm so nervous having these clowns rebuilding the Engine on my Blown Hyper. Their story is an apprentice ruined the brake deal, but the
certified Ducati "Master" will be doing my engine. (they claim the guy is one of just a few actual Ducati Masters in the Bay Area. (I have no idea the veracity of that claim)

Wish me luck ... or PLEASE ... offer any suggestions I can forward to the mech before they dig in. (still awaiting parts ... )
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