I've pondered over this one but I can't figure it out - trying to remove the throttle cable to oil and/or replace. I can unclip at the pump and I've unhooked from the accelerator cable......but how does the cable feed through into the engine compartment? I gave it a wee tug, nope. I tried to somehow unhook the rubber seal where it enters the engine compartment, but doesn't seem to do that either. What am I doing wrong?