I pull my front brake handle and it goes all the way in but the brakes don't work. How do I bleed them if that is the problem ?

[2015 Z Force 800 53/Trail EPS]

I pull my front brake handle and it goes all the way in but the brakes don't work. How do I bleed them if that is the problem ?

Need to first see if the reservoir being low is the problem by taking the lid off the master cylinder and checking. If it is, need to find and fix the leak first, then there are many YT videos on bleeding motorcycle/ATV brakes. If it's full, the master cylinder has a problem and needs rebuilt or replaced. Once done you will also need those YT videos.