As far as adjusting the cold start idle, first thing you want to do is replace the lower bolt (the T25 Torx) on the idle lever with a hex bolt. You will need a M5 x 0.80 bolt that is quite short. This makes it MUCH easier to adjust the position of the lever when the pump is on the engine. After that, it's just a matter of making sure the cold-start mechanism is set at the lowest idle and advance so it doesn't interfere with the overall settings, set the general pump timing/idle/fueling, and adjust the cold-start advance and idle to your liking.