You will have to pull the starter jet to see if itís too loose in the bore.
In a warm engine When you flip the choke ON what happens? Nothing? It dies?
I think he was talking about just drilling the choke enrichment valve, not the bore ?.
'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit