Well new to the form so figured intro and ask a question. I have a 2012 RXP-X 260 ( as listed above ) with 53 hours on it. In the last 3 years it has not had overly much use. Probably less than 10 hours total. I has developed a hesitation issue when cold and sometime it continues when warm. When at full temp it seems to be gone. It acts as if it is over fueling and raw fuel can sometime be smelt while it starts. The first time it happened the machine was running at full throttle and it was like hitting a wall. the unit dropped from 65 mph to 30 mph and would not go any faster. We added new fuel and only use premium and ran some injector cleaner through and that worked eventually. But since has alwas had an issue at cold temp and first start. It also sometimes has a rough idle. Almost sounds like a full Misfire. Have changed spark plugs as well.

Any help is appreciated.