I know you PM'd me this morning but i am going to post the answer here so others can see in the future for the same problems, I do not know why when TPS sensors are set up the way the factory says and they idle to high and i have seen this before but when people install bigger throttle bodies on these engines they have to throw out the base voltage and stick with the .735 as the final setting. I had to do this on mine as well and it has the stock throttle body. So adjust the idle so it sounds proper and go back to the tps and reset to .735 and repeat the procedure back and forth till it idles well and maintains .735, don't worry about the base setting. As for the leaking spark plug wire they are prone to this and must be fixed to make all other adjustments. this could be your backfire and hesitation. This should be done in a dark place and look for the leak at different RPMs. Make sure there is no dust or water in the spark plug hole and boot and all that may be needed is to turn the boot a little. You may want to add some dielectric grease as well. This would be a good time to change the spark plugs as well. Do not use Auto lite because i have seen internal shorting on that brand.

Are you running wounderfull windows Vista   :!:  :idea:  :?: . I PM'ed the setup to you. The driver is a little trickey to make but with a little fabrication it can be done. It is part of polaris's way to make you take it to the dealer but it can be done....

You will need adobe reader to read the manual i sent you, on the link below is for a ranger XP but is the same procedure on how to set up the TPS sensor. The only difference is set the voltage to .735 instead of .710. You will not need the extra tools that are listed in the manual. Also i have included a link for adobe 9.1 if needed for a free download.

http://www.sidexsideforum.com/viewtopic … hlight=tps

http://download.cnet.com/Adobe-Reader/3 … 00062.html

Let us know what you find....

I need a little more info here. when you put the back up on jack stands and the transmission in neutral and in one wheel drive or two wheel drive can you spin the rear wheels by hand :?: . As of now i am thinking it is one of the rear diffs. Pull the drive shaft off the transmission and re-test :idea: . I personally don't think it is the transmission as of now and i have not heard of this problem as of yet.

Hope what i sent helps and any other help fell free to ask. Keep us posted on what happens.

I do not know of to many limits widths in southern California and because of this the only choice as fare as i am concerned would be the RZRs. There have been many people that have posted on this forum on the RZR question and most answers can be answered by doing a search here.