YZ250f 2022 Squeeshy front brake

Hi,

I have tried everything to bleed my front brake line. As I can easily pull the lever to the grip, it does lock the front wheel, so it's working but it feels off, no real control. This started to happen about 2 weeks ago.

I have an aftermarket Polisport unbreakable lever, but tried with my OEM and it's the same.

What I did:

- 'Normal' bleeding (caliper on forks) and pump, hold, open valve, close, repeat for about 1 hour. No air bubbles only fluid

- Rebuild the master with a rebuild set (new o-rings)

- Pushed the fluid up with a syringe, some air bubble came out of the master, but when bleeding again only fluid

- Hanged the caliper higher then the master, bled, only fluid not a single air bubble

- Ty-wraped the brake lever to the grip for the night, same feeling in the morning, bled some more, only fluid

I read the YZF brakes aren't great but this seems not normal.

Any more tips? Thanks!

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Factor E
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9/22/2011
Location
So Cal, CA, USA
9/20/2024 10:44pm
Start w banjo fitting at master, hold lever in and crack fitting open and close quickly to bleed it. Do same at caliper fitting then go back to bleeding system a couple times thru bleeder fitting.
2
luigis
Posts
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6/19/2024
Location
Djee, NL
9/24/2024 3:58am
Factor E wrote:
Start w banjo fitting at master, hold lever in and crack fitting open and close quickly to bleed it. Do same at caliper fitting then go...
Start w banjo fitting at master, hold lever in and crack fitting open and close quickly to bleed it. Do same at caliper fitting then go back to bleeding system a couple times thru bleeder fitting.

This, and be sure to fully compress the piston into the caliper a couple times if you haven't done that yet. Stubborn pockets of air can get trapped there too

spimx
Posts
1314
Joined
3/25/2019
Location
Port Isabel, TX, USA
9/24/2024 7:39pm

I think you have a slight leak somewhere and the cable is about to go. Really look at tha cable closely. 

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