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Old 06-04-2013, 06:46 PM   #1
Monty348 OP
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Brembo brake master cyl. Fantic 309

"New to me" 309 Fantic. I took the cap off the front master cylinder this evening to change the brake fluid and found two pieces of course plastic mesh inside with the fluid. A better description would be to say they were small cubes of plastic scouring pad. Do these belong in there? Are they some sort of baffle?
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Old 06-14-2013, 09:54 PM   #2
LarryDawg
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???

I've worked on and ridden lots of bikes and have never seen anything like that in a mastercylnder on motor cycles, maybe some of the smaller Cars would have it but never seen it in motor cycle. My two cents
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Old 06-15-2013, 07:58 AM   #3
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My 307 Fantic had the same thing, never removed them and everything worked fine. No idea what function they served.
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Old 06-15-2013, 01:13 PM   #4
Monty348 OP
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After quite an extensive web search I found that a Suzuki of some sort from the mid '80's used the same master cylinder. The parts fiche showed these and listed them as "filters".
I cleaned and dried them quite well and put them back in place. As long as they don't deteriorate all will be well.
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