There's several jetting threads to search. With an old bike many things can be at play. Possible air leak as you say is worth investigating. Careful spray of ether around Reed area and check under ignition stator.
Also. Pull carb and look down needle jet with bright light and magnifier. Vibration will ovalise the hole front to back. Any ovality will cause grief. Also cut the N1** in half so you're not tempted to use it.
__________________
'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
|