Ed,
I noticed that they have an "improved" injector that may work better than
the one I bought. Keep in mind, it's designed to fit cable housings, not
Nylaflow tubing. The other thing to consider is the length you're trying
to force the lubricant through. I doubt any snowmobile or motorcycle out
there has 16 foot brake cables!
You could buy the cable care kit and try the new injector or just buy a can
of Cable Life. The can comes with a WD40 style tube I'm pretty sure.
If it doesn't, the one off the WD40 can will work. I bought mine directly
from the Protect All web site.
Mike