Sounds like you are in the right area. Here is a diagram that might help:
Look at hose #2. You want to take it off where it enters the air intake pipe and spray the fogging oil in there. You may not see much come out the exhaust. A thin layer of oil on the pistons and valves is what you are shooting for. Most guys claim a 5 second spray with the engine running should suck the oil right into the system. I haven't done it myself on this model, so don't know for sure.
Other option is pull the plugs, give a spray of fogging oil down each plug hole, then spin the engine over for a few seconds to distribute the oil (hold the stop button when pressing the start button will retard spark to protect the electrical system, and I think it will also retard fuel flow). You may want to cover the holes with a rag, so you don't get splattered.