Z master cylinder/caliper replacement kits

[classicman]

Anyone know how to dismantle a Z master cylinder to stick in replacement parts? The bike has been sitting for 20 years and the little MC piston is totally corroded, won't squirt air! Will a simple dismantle and clean in the garage do the trick or should I be thinking bout sonic cleaning or similar, same thing goes for my caliper, need to replace bits there too

[chopper]

Should be ... Undo the circlip and pull the guts out.

[chopper]

Kits are on wemoto. Com

[classicman]

Brought my bits to Frank at Mototecnic in Terenure, great fella, great price, great job!