Engine miss firing
 

Hi all,
Just joined forum. I bought a 2014 Ruckus with 850 miles on it. Just so you have the facts, it's completely stock and I weigh about 280.
My problem is that after it warms up, on an incline it feels like the engine is miss firing at half to 3/4 throttle. Idle and full throttle it runs great. It feels like an ignition problem and not fuel. Any ideas or things to check.
The plug is new. The fuel is new. Are these the symptoms of a failing CDI? Any help would be appreciated.