starter fluid
Way late on response, just picked up on this thread. STARTER FLUID IS BAD. It is way worse than a shot of gas with no lube. It actually will strip the lubrication off your bearings and cylindar walls. Gas with no lube will just vaporize and pass through and is not bad unless you are running on it long enough for the oil coatings to be wiped off naturally.
On the other subject, a choke will allow you to pull enough gas into the barrel to fire when the engine speed is not high enough to do it otherwise; when starting. It is a piss poor way to fill the carb when it has been sitting a while. A primer bulb will do this efficiently. Some of you are talking about a primer bulb to inject directly into the barrel which is a whole level of difficulty higher to accomplish, but would be like an accelerator pump which cars have and Mikuni's do not. Problem here is it would be very easy to flood.