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Scooters - 125 to 300 => Downtown 300 => Topic started by: Yoni159 on May 19, 2025, 07:59:52 AM

Title: This is look bad?
Post by: Yoni159 on May 19, 2025, 07:59:52 AM

How to clean it? I used wet napkins it help a little.. brake cleaner will clean it?
https://files.fm/u/7k6n39wh36

Title: Re: This is look bad?
Post by: Iahawk on May 19, 2025, 12:32:56 PM

I've used a toothbrush and soapy water to clean calipers and pistons. You can also use some very fine steel wool to clean the pistons. You don't want to push dirty, corroded pistons back into the bore. I would be very careful using brake cleaner as it will cause rubber parts to swell, although I don't see the rubber dust boots visible in your picture (?)

Title: Re: This is look bad?
Post by: Ruffus on May 20, 2025, 09:46:16 AM

Pistons in this condition have to be renewe, for they do NOT garantee a safe brake system anymore.

Title: Re: This is look bad?
Post by: Yoni159 on May 21, 2025, 02:46:34 PM

Quote from: Ruffus on May 20, 2025, 09:46:16 AM

Pistons in this condition have to be renewe, for they do NOT garantee a safe brake system anymore.

why renew? I can just clean them with brake cleaner.. they still work

Title: Re: This is look bad?
Post by: Ruffus on May 21, 2025, 08:25:57 PM

Quote from: Yoni159 on May 21, 2025, 02:46:34 PM

why renew? I can just clean them with brake cleaner.. they still work

Because brakes and parts of it are safety related items on which yours and others lives depends on.