[77newell]

Regarding idling a 2-stroke engine. Yes, the oil pressure is very sensitive to engine speed, though more so when the oil is hot. Some of these engines are equipped with a "high idle" switch which raises the rpm's. Lacking that you can use the throttle once the air pressure comes up enough to make the air throttle work. Around 1000rpm is sufficient.

Let's not make ourselves crazy here. If you are caught in stop-n-go traffic you are going to do a lot of idling or near idling. The engine will suffer a tiny bit but you will never notice. That said, the very real threat to these engines is overheating. You can get away with idling, you won't with overheating.