This is a good base setting:

HSN flush, LSN 1 turn in from flush

With idle gap set to 0.7-1mm these should get you going. In case you have issues getting engine to idle lean LSN until it stays on. Don't touch the idle screw once set to about 1mm. Regarding tuning fill tank, drive it through making sure everything is OK and engine is up to temp (+100deg), refuel, drive to about 1/2 tank, turn in HSN if needed untill the engine clears out nicely on top but with clear smoke trail, then tune LSN (3sec kill or other way you prefer), set idle if needed and in case needed, retune/make sure LSN is correct. In case you end up loosing power on half a tank and/or get lean bog, open HSN 1/4 turn and go again from there. Long LSN is bit more tricky on HSN setting. Also be conservative on tune untill about gallon and you've got rid of the mechanical pinch. Power is more on LSN than HSN on these engines.