Lovely
small observation, to me its running a bit dry for a 2t e.g. not enough smoke. if the bike has a tank and pump for the oil try testing the output of the pump or if its new barrels then set the pump to "Run In" for the first 500 miles or so.
do a "plug chop" and check the plugs.
or it might just be you haven't ridden a 2t for a while...