Hand-me-down master cylinder reservoir from the lx450 for the '83 pickup cleaned up good with some "SuperClean" cleaner/degreaser I got from wallyworld, then rinsed w water.
Did best to keep water out of aluminum body. Followed up with compressed air.
Did not have a rebuild kit for it but not...
working on this reminded me how the 80 series engine compartment mysteriously swallows stuff one may drop in there - it may fall out the bottom or it may not.
Nothing wrong with old master cylinder aside from having a dirty reservoir but it's a good hand-me-down for the '83 pu because it got...