If there a fail in right side engine will burn oil from gearbox and smoke badly. If there leakage from generator side will should de able to see some leakage under electic coils. But this usually happen on much older bikes....
Seems like your carb have some blockage. Return the settings for what they are before problem started and give a good clean with compressed air.
Install a gas filter since due the position of gas cap in this rear tank models, it is easy to get dirt inside gas tank.