Is that what this is? I thought i was going crazzy......

The Ranger Xp's are the least likely to do a roll over due to there wider stance and suspension and center of gravity, they are way more stable then the others because of that. The standard RZR is well known to tip over if not operated properly as well as the rhino and i have driven them all, I was very impressed with the RZR-S though. I have not driven the arctic cats so i cant speak for them but would think they are closest to the Ranger Xp's because of there wider stance as well. Any UTV or ATV can be dangerous if handled in an unsafe way......

For question A. I'm not sure how to answer that one. For your other questions the compression should be around 150 to 200 psi and you have an early Gen 1 RZR. I would do a full maintenance and clean the Tmap/Tbap sensor and check for silt going into the engine through the air intake system. I am a big fan of K&N filters on anything other then the 2007 and 2008 RZR due to the Induction system and where it gets its air from. The filter is part or the recall and it has a much better Micron rating then the K&N But it will not flow as well, That is a choice that you have to make, a little less power or what is safer for the engine, If you do a lot of riding in silty dusty conditions i would remove the K&N or install a snorkel kit to bring in cleaner air from a different source. I have done some threads on service oils and filters and if you do a search you can find info on TPS sensors and the tbap/tmap cleaning.

Well it sounds like you have your mind all made up already before you asked the question so go buy what you want from another manufactures, I personally have no issues with it about what you are complaining about and i am 6'2" at 290 lbs:!: So don't complain about something that you don't own :idea:  :!:. It is that plane and simple :idea: ......

As Long as the X's are lined up it is good to go.

If you go to these people you can have the parts by friday and cheaper.

http://www.polarispartshouse.com/

It is safer rich but yes clean both plugs and put another 40 miles on it. Lean would be white and a good plug should be tan to brown with maybe a tad of black. what is on the plug now maybe from all the tuning and an AF gauge is what measures what the air fuel ratio is and reads it out of the tail pipe with an O2 sensor. A lot of the guys install them to adjust for proper air fuel when adding a fuel controller for modifications on there engines and the exhaust and to tune them better to get around EPA stuff. they are a good tool to make sure that the fuel curve or jetting is set properly. Polaris RZRs tend to run rich at idle and low end and a little too lean at top end.