So, lately, my MS200t has been bogging/ stalling on cold startup. It'll idle, but if the go switch is pressed too hard, it'll stall. It'll start first pull in the half choke position every time after it's started. After a min or 2 of playing around with reving and letting off as it bogs, it'll run full tilt with no problems. It'll start and run properly while it's still warm, but as soon as it cools off, it'll do the same thing again. Anyone got any ideas as to the cause of the problem? So far, I've cleaned out the spark arrestor, and the air filter (but might get a new air filter anyways). No change.