If you have not already done so, make sure you have a quality brand battery with plenty of power left.
Factory dwell Ego 09 = 10.5ms
Make sure LPR is turned in 2 to 2.5 turns in from flush.
Does the 09 have the updated barb and planks ?
As suggested already by Stoney, clean and lube the HPR/LPR, give the rammer area a thorough clean and oil orings on rammer.
As suggested by Evil Rich, try some better quality fresh paint.