02 monster ie feels like running lean?

[Gearhead211]

Have 02 monster620ie seems to b running lean poping into exhaust at highway speed.

[DarkMonster620]

do you have a diagnostic tool?  > > > to check tps and set trim; depending on if you have stock air filter and exhaust or if you have performance air filter and perfomance exhaust

check exhaust joints

check vacuum hoses

correct plugs? [ngk dcpr8e or champion rc4h]