'84 250r front brake piston siezed

[Albino]

When restoring my R I squeezed the piston in to install new pads.Since then I can't get any pressure in the line or get the piston to move,the resevior and lever assembly is new(off a 400ex)the lineis good,the caliper has been cleaned and looks good except the piston looks rusty.How do I get it to move.Its disassembled now and siezed flush with the caliper....Thanks. Also the new bleeder screw has a slightly larger hole on the inside,would the larger hole hurt anything or just expell fluid faster.

[MR ATC]

it sounds like the caliper needs to be rebuilt, especially if the piston is rusty. to get the piston out, block off the inlet with a 10mm bolt, crack loose the bleeder screw and attach a grease gun, pump the caliper full of grease and it will eventually push the piston out. then install new seals and a piston.

[Albino]

Worked like a charm,everthing looks good but can't get pressure to the line.Nothings leaking.???Try later.Thanks