I made a bleed tool for doing truck brakes by myself without a pump partner that works for any hydrolic system. Really easy n cheap to make.
To change a hose: Get an old soda bottle 12 oz or bigger. 20 oz is perfect for a bike. One fuel line or similer tube that fits snugly over the bleed screw. And some string n shop rags. The tube fits over the bleed screw and should be cut two inches past where it hits the floor when attached to the bleeder. Put the hose in the soda bottle.
Open the bleeder... but just enough to bleed. If you go out to far air gets sucked in later on. Its best to apply a little pressure to the lever and open til it flows without restriction under lever pressure into the bottle.
Pump the brake until the resivour is empty. Then Squeeze caliper to spend all the old fluid. Open resivour to varify its empty and remove any forign material.
Remove brake line. Replace breakline.
Very important...Replace old spent fluid in bottle with new so tube is submerged a few inches in ...new dot4... Dispose of old fluid by capping bottle. Use a new clean bottle if possible. Fill resivour w new fluid. ...dot 4... and Pump brake slowely.
Heres why clean fluid in the bottle is vital ... At first youll see bubbles. Each time you expell air it returns the fluid you put in the soda bottle. Keep the resi full.
Pump till bubbles stop.
Close bleeder...
best bleed ever. Cant be beat!
Note: use the string to keep the bottle upright by hanging it from the bars.
the shop rags will come in handy when you dont use the string.
This works on any vehicle without help.
Good luck!
Enjoy