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238 Views 3 Replies 2 Participants Last post by WFO-KZ, 9 mo ago

Gman101

Discussion Starter · 9 mo ago

Hello all,
I am new the Kawasaki family, but not new motorcycles or riding. I bought a 2009 Kawasaki Concours and am slowly ticking down the maintenance needs of the bike. The bikes in pretty good shape overall, but needs a little TLC ( Time, Labor, Cash).
On the list new battery, change all the fluids, new tires, new brake pads, and maybe some new bulbs for brightness.
I already did the battery, then I went on to clearing both the clutch and front brake master cylinders of their dirty fluid.
The bike road, sounded, and functioned great afterwards...
But then both master cylinders lost pressure after a few days. So I went back and bleed them again, and a few days later there was no pressure. So I watched and read some instructions on bleeding them, still the same issue occurred.
Has anyone else had this issue?
Any guidance would be greatly appreciated.

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Gman101

Discussion Starter · #3 · 9 mo ago

WFO-KZ said:
Maybe the brake fluid you used was incompatible with what was already in the system?
Maybe it is time for new seals?

Well I used DOT4 which is what the cap on the master cylinder said to use.
I am in agreeance on the idea of new seals, but it's odd that both clutch and front brake master cylinder lost pressure after the process...
I did just read that one person had been having a similar issue, and he added Teflon tape to his bleeders and it took care of the issue. He said air was escaping through the treads of the bleeders. I may try that remedy to see if it does the trick.
But likely I am going to rebuild both master cylinders.

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