The carbs are easy enough to sync, if you have access to a decent set of vac gauges. That is a must do, IMO.
The pilot screw o-rings can be easily damaged upon removal, that is something to check...& the washer that goes between the spring & o-ring must be in the right spot.
With the bike in neutral & the engine warmed up an running, if you blip the throttle, do the revs "hang" a bit, or drop back right away?
