Here is one for you tool junkies

Since R12 went out, R12 charging cylinders are available for pennies.
Change a few fittings and add a Schrader valve on top and you have a oiling system preluber for small engines.
Just tap it into your overhead oil line on a Norton. Pour in a quart of oil and put about 50 psi in the cylinder.

Clever. I'll be looking for one of these. The hand pump I've been using for that is really old, and always leaks oil on me when I use it. I've been meaning to make a decent pre-luber for years, but as usual, never got around to it. This one looks easy enough that I might actually do it. Thanks for the idea.

Ken

Very nice ,I have one that is a little bit more primitive than yours but it still works ok ,made from an old fire extinguisher