when i started my car up after work yesterday and left it was hesitating and jerking pretty bad for about a half a mile then smoothed out and ran fine. today it ran fine for my trips to and from work, but then it sat for a couple of hours and when i wanted to run somewhere with it just now it did it again but took 3 miles before it smoothed out. whats up?

 

Did you try changing the fuel filter. Mine did the same thing.

 

It's 'suggested' that you change your fuel filter on a Rotary ever 15,000 miles...however, a lot is suggested. If I were you, I'd take fanuvkorn's comment to heart and change the fuel filter. Also check your grounds.