Help please front brake fail

Ok so this is the story, I replaced the front brake on my 12 kx250f to an oversized rotor. Ever since the front wheel didn't spin so freely. Last week, 30 engine hours later, I loaded up the bike and I secured the front brake. About 10 min later I noticed that although the front lever is applied the front wheel keeps moving around. I looked and I saw some brake fluid on the brake lever. Today I tried to bleed the brake and now the lever has no effect on the brake and the wheel still does not spin right.

Idk what to do I feel like an idiot please help.


Not really understanding "securing the front brake"

the master cylinder most likely needs to be rebuilt. there are plenty of kits on Ebay.

easy to do.


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