OP
UTC

Lurker
Fly 125
Joined: UTC
Posts: 2
Location: Australia
 
Lurker
Fly 125
Joined: UTC
Posts: 2
Location: Australia
UTC quote
I left my Piaggio Fly 125 for 6 years untouched. When to back to check it out last week. Started with new battery, changed oil etc but front brake fluid had turned to goo. I cleaned out reservoir and sprays brake cleaner and around. Problem is, front brake not pumping brake fluid.lever moves fine. Unbolted the line at end of reservoir, sprayed brake cleaner upstream but still nothing pumping through. Any advice?
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Molto Verboso
2022 Liberty 150S-"Meg"-SOLD
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Posts: 1155
Location: Texas
 
Molto Verboso
@25bikez avatar
2022 Liberty 150S-"Meg"-SOLD
Joined: UTC
Posts: 1155
Location: Texas
UTC quote
Barraboy wrote:
I left my Piaggio Fly 125 for 6 years untouched. When to back to check it out last week. Started with new battery, changed oil etc but front brake fluid had turned to goo. I cleaned out reservoir and sprays brake cleaner and around. Problem is, front brake not pumping brake fluid.lever moves fine. Unbolted the line at end of reservoir, sprayed brake cleaner upstream but still nothing pumping through. Any advice?
Probably need to rebuild/replace the master cylinder and the caliper pistons. They get old and stiff, and won't move fluid anymore. The caliper pistons can/will rust frozen because of trapped water in the fluid.
OP
UTC

Lurker
Fly 125
Joined: UTC
Posts: 2
Location: Australia
 
Lurker
Fly 125
Joined: UTC
Posts: 2
Location: Australia
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Cheers mate
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Veni, Vidi, Posti
Joined: UTC
Posts: 6898
Location: Tega Cay, SC
 
Veni, Vidi, Posti
Joined: UTC
Posts: 6898
Location: Tega Cay, SC
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You may have to add a new brake line as well as sometimes they collapse on the inside. Get all the old brake fluid out and flush the whole system with denatured alcohol.
UTC

Veni, Vidi, Posti
Joined: UTC
Posts: 6898
Location: Tega Cay, SC
 
Veni, Vidi, Posti
Joined: UTC
Posts: 6898
Location: Tega Cay, SC
UTC quote
The fluid turned to goo because there was water or water vapor introduced . Check the seals after you flushed and cleaned it all up.
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