Havent had to do my pb650 carb yet but on my 20" chainsaw
kit included diaphram, gaskets, spring, pin, etc-about 12 pcs.
could have got the quick repair kit - 4 pcs.
full kit about 1/2 hr going slow
quick kit about five minutes-this usually fixes most problems-very simple job
my saw is older (10yrs) so newer carbs may not even have 12 pcs to replace-
If you want people to notice your faults, start giving advice.