Originally Posted by cobalt327
There are motorcycle cable lubricators that are used to get lube inside the cable sleeve and not everywhere else.
The idea is to clamp the cable sleeve end w/the ferrule into the rubber sleeve, the inner cable comes out the other end. Tape or whatever can be used to build up the OD of the type cable being worked with.
Then the lube straw tip is inserted into its hole and the lube is injected into the cable sleeve.
Cost <$10. Many bike riders will already have one around the shop.
this is what i use, they work very well
if properly put on the cable, the end is sealed up with the straw on the spray can
allowing the propellants' pressure, from the aerosol can, to force the lube through
they work great with penetrating oil, for freeing a frozen cable
or you can use them with lubricating oil, for maintenance (if they start to get sticky)