Not sure if this is normal but being a fuel injected engine I wasn't sure if it should do this. Also I don't remember it doing it when I brought it home. From Idle rapidly twist the throttle and there is a little stumble almost like a bog before the engine races. If I give it a slight twist and then a rapid twist no problems it only happens from idle. Is this normal or do I need to let the stealership look at it? Thanks for your input on this.