I have a 1999 996 with 137xx miles. Its been runing great. Tonight my gf and I decided to take a ride. Went to her sisters (approx. 15 miles) and had no problems. Leaving her sisters the bike struggled to turn on and stalled on me as we were leaving. Then the issues began. The bike didn't sound good (not the typical grunt from a Ducati... it was like if the bike was clogged up or something) and at low RPM (0-3000) and it was lacking power. Over 3000 RPM it seem just find except that every now and then it would 'catch' and the RPM's would jump and then they would fall. Temp was normal, just a tad over 180. Pulled over and checked the bike and nothing seemed wrong. No smells or no weird sounds (metal on metal). I don't know where to start on how to fix this, need your help!!!!!!