You might try to use the choke when you give it some throttle while in gear and see if that improves it. If it does that indicates a fuel/air issue. If it doesn't help at all it might be an ignition problem. In that case a new NGK spark plug might be the starting point for diagnosis.
Are the carburetor and all ignition parts still OEM Honda originals?
What were the events that led up to this condition?
Welcome to the forums!
Are the carburetor and all ignition parts still OEM Honda originals?
What were the events that led up to this condition?
Welcome to the forums!