I basically do what you said on bike engines, except I'll briefly use full throttle, though not in neutral or the lowest gears.
I really want to hear Dan's answer about the saws. My understanding is that the stock cheap (simple) carbs don't really have provision for part-throttle accuracy, and that saws are meant to be pegged anyway (though not held that way from limb to limb) if not idling. Therefore I do much the same with a new saw as you described, but with no (or extremely little) part-throttle use, with "normal" full-throttle use, and no prolonged idling except for somewhat longer than normal to gradually get the saw up to temperature and again after full-throttle use before shutting it off. Basically, just use it in the way I ever would, but a bit more intermittently and gradual for the first few tanks.
Glen
I really want to hear Dan's answer about the saws. My understanding is that the stock cheap (simple) carbs don't really have provision for part-throttle accuracy, and that saws are meant to be pegged anyway (though not held that way from limb to limb) if not idling. Therefore I do much the same with a new saw as you described, but with no (or extremely little) part-throttle use, with "normal" full-throttle use, and no prolonged idling except for somewhat longer than normal to gradually get the saw up to temperature and again after full-throttle use before shutting it off. Basically, just use it in the way I ever would, but a bit more intermittently and gradual for the first few tanks.
Glen