Front brake not getting firm after new fluid

Still air in the system, probably in the banjo fitting at the master cylinder. Try moving the MC reservoir so the fitting is below the cylinder a bit, then slowly squeeze the lever until tight, or against the grip, hold several seconds, then let it snap back. This should pull a bubble into the MC, where it can be expelled into the reservoir by gently moving the lever in and out, then start again.

That's what it was! Thank you so much!! But now the only thing is is my brake locked up and the wheel won't spin. Any idea on that?

The check valve in the master cylinder is clogged or the wheel cylinder pistons are frozen in place are two possibilities.

There should be a very tiny little hole somewhere in the bottom of the master cylinder reservoir - not the larger hole that the fluid goes into, but a very tiny relief hole. Sometimes this gets clogged with corrosion or dirt and will result in locking up the wheel.

As above.
Also, a rare possibility for a bike, is the rubber hose collapsing inside. It will allow fluid thru under pressure, but not let it back. Happens on Chevy pick up trucks. How many discs on the front. I am guessing it is one.

UK

If the wheel frees up after sitting overnight, maybe look to the master cylinder.
If it doesn't free up no matter how long it sits, maybe caliper/s.

At any rate when stuff like this happens, many times a total overhaul of the hydraulics is the best and longest lasting fix.

I fixed it! I had to pop the piston out, clean it alittle and lube it a bit, now it works perfect

Thank you for following up with the fix. That will help others with the same problem.

Unkle Krusty said:

As above.
Also, a rare possibility for a bike, is the rubber hose collapsing inside. It will allow fluid thru under pressure, but not let it back. Happens on Chevy pick up trucks. How many discs on the front. I am guessing it is one.

UK

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My Ford F150 had that same problem.