use running-in oil for the first 500-1000 miles then do a oil and filter change with sum decent oil, dont take the engine over 3500rpm for the first 500 miles.

as for timing the dizzy do it once started as best as you can, then recheck after a couple of hundred miles as it will take a while for the rings to bed in etc

dont nurse the engine thou, go up through the gears as normal just keep the revs low