I have had my 2007 700 XP since new and can get to around 50 MPH with single rider and no windshield. With 2 riders, gear and windshield on I doubt I would get much more that 40 MPH. However, I have never had any issues with sputtering or limiting at max speed and will need to have the experts chime in but never experienced this scenario. It will be interesting to find out what it is!My soon to be son-in-law and I took my '07 out for a cruise on Saturday. Now being he's 30 years younger than me the first thing he did when we hit a straight stretch was to open her up. I haven't driven it much past 30 mph in the 2 months I've had it. Anyway once we hit 40 it started to sputter and buck and wouldn't go any faster.
Is there a speed limiter or do I have other problems? It run flawlessly right up until 40 mph.