I had planned to take a week off to go from Denver to Hutchinson, Kansas, for an annual Heavy Duty Truck and RV Rally. I didn't make it. My 950 started doing "it" again. 2006 950S Emissions crap removed Flaperectomy Mikuni vacuum pump Head2Wind prefilter Jets Other than that the engine is stock. I'd encountered this before. First time was on the way back from FMF June of 2011. It's like it ran out of power. I was climbing Kenosha Pass eastbound with wifey and full bike of camping gear. I made it home and after searching on here I found it was likely my ignition switch. I cleaned it and put more dialectric grease on it. It did it again this summer after heading to my parents 45 min away. I cleaned it again and it seemed to be fixed. Until I was halfway from Denver to Kansas. Anyway, you don't need a play by play on when it happened this trip so I'll just tell you the symptoms and what I've done so far. *Valves checked and shimmed, oil changed, spark plugs replaced 300 miles before trip *New battery last year *Cleaned ignition switch multiple times on trip *Removed and checked Mikuni vacuum pump for oil from crank breather tube. No oil found. Fuel side is clean, also. What's happening: *Starts and runs fine in neutral, through all RPM ranges. *Was running great for the first couple hours. I'd be going along at 70 mph with the throttle holding and my speed would just start dropping slowly. This is on the flats. Giving it more throttle would almost flood it. It would sputter, then if given too much throttle it would die. If I kept off the throttle and got into neutral it would drop to idle and be just fine. If it died it would restart. Then a few miles down the road it would happen again. It wasn't hot. It was 28* when I left Sunday morning. Warmed up to maybe 40* by the time I tore the vacuum pump and switch apart on the side of Hwy 83 sixteen miles south of Oakley, KS. Yes, I made the tough decision to backtrack the sixteen miles to Oakley. Of course, it ran fine those sixteen miles. I got a hotel room and called the wife to pick me up. I just couldn't risk it. I, stupidly, didn't have a multi-meter with me. So, I'll check the battery today. I don't want to jump to conclusions so I thought I'd post up my problem here. Thanks guys.