Great news. Here's what I done. I went down to our local auto parts store and gave him the numbers for Airtex E8229. Cost is 139.00 The pump was the same but a little different on the plug. The plug may have worked, (I forgot to take the wiring harness with me). I own a 93 Jeep Wrangler that does carry 39 pound of pressure. I told him to give me that pump. That pump number is Aritex E8335. It is EXACTLY the same, plug and all. The price on it was 112.00 with a one year warranty. I came home hooked it up and turned the key the gauge went to 40 pound and I lifted up the fuel assembly cover and could hear the excess fuel returning back into the tank through the internal regulator. I started it up and took off out the road for a short 5 mile trip with speeds up to 50 MPH and no hesitation, no backfire, extremely powerful. I noticed it idles a little low when it's cold. (850rpm) When it warms up it seems ok (1150rpm) Do you think I need to readjust the TPS and air intake valve now that I have all my pressure? So from now on anyone who has fuel pump problems needs to order an Airtex E8335 pump and it will fit exactly right into your existing cage. Piss on Polaris and there 450.00 fuel tank assembly. You can even use the Polaris fuel filter. This Airtex pump even says Bosch right on it. So for right now, she's running good. I hope this is fixed. I want to thank you so much for your cooperation and your help in tracking this problem down and helping me get it fixed. So from here in the Appalachian Mountains of Southeastern Ohio I want to tell you and your family to have a great fourth of July, and I will be in touch in the future to say hi, and try to help anyone else I can on the forum. Thank you again. You are definately a 5 star mechanic. 

That could be a possibility. I just read the service manual again, and the way I understand it. Once the pressure exceeds 39 pound, (+or- 3lb.) The regulator spring will allow the excess gas to expel back into the tank. I did another test, it was kind of crude. I took the sending unit out of the tank and took it clear apart and took out the pump. I took the pump and hooked a rubber length of hose to it and plugged the leads back in and hooked my gauge up to the length of hose. Lowered the pump in the tank and turned on the key. 29 pound was all i could get. Now,,, that bypasses both fuel filters, regulator, injectors, and all. So,, definately sounds like a weak fuel pump. Like I said,, My Polaris dealer said they have changed a few, but not very many. They said it is a non servicable device, 460 bucks and he says it comes with a new tank. I don't need a new tank. lol (which I can't beleive, because everything on it can come apart). I have the pump right here in front of me. It's a Bosch pump with numbers F 01R 00R 007,,,,,,,,,, 12V 566,,,,,,, 789-22,,,, Made in China. So I can't believe I wouldn't be able to find one,, But I am definately going to take your advice and go to my local Auto parts and look at that pump tomorrow morning. I'd say with all the testing that you've had me try this week, (which I greatly appreciate,, I've learned alot this week, Thank you) that the fuel pump is the culprit. I will let you know what I find out, and if you can think of anything or know anyone on the forum who may have  a used one for sale please pass it along. There isn't too many of these around here for parts.

Thank you. I called our local store and they have one in stock and it is 135.00. Do you have any idea the pound that this pump will put out. I was thinking that if it puts out over 39 pound wont the regulator open up and dump the fuel back into the tank? Does the pump in the bike now more than likely put out more than 39 pound and the regulator takes care of the rest. But mine is barely putting out 29. I was figuring the same thing after we done the ohms test and jumped out the relay and it stayed at 29 that it was the pump. I will try to get down there in a day or so and match it up and bring it home and try it. I'll let you know. thank you for your help, I am greatly indebted to you.

Morning,,,,,,, I done what you said, and here's what I got. On the Ohms part of this test. I'm not real familiar with the Ohms setting on my voltmeter. I understand AC and DC but Ohms I don't fully understand. So I will explain to you what I done. My Multimeter has 5 different Ohms settings. 2000K, 200K, 20K, 2000, and 200. I had 0.4 Ohms on 200 and 000 on all the other ones from the Neg of the battery to the brown wire on the plug. I had 1.0 on 20K and 000 on all the other ones from the red wire on the plug to the number 87 terminal in the fuse block. I took a 14 gauge wire from the positive on the battery to the number 87 plug in the fuse block, and checked voltage at the red wire on the plug and had 12.6volts. I then plugged it in and the pump came on and run constantly for about a minute and the pressure never went over 29 pound. I even took the gauge and hooked it up directly to the steel nozzle at the fuel tank where the high pressure line plugs into the tank itself and still got 29 pound. As for the fuel filter I didn't get one. Just for test purposes I took it off and set it down into the full tank of fuel, turned on the pump and got 30 pound of pressure. I also took the gauge off the tester and put it in a gallon jug and run the jumper wire, the fuel came out the hose only about 2 or 3 inches in a steady stream. i have done this before trying to diagnose cars and seen fuel shoot 5 feet. So where do we go from here. I am your mercy. Thank you so much for your help.

I'm thinking it's fuel now too. I have to either configure up something for a fuel pressure gauge or go buy one. I don't have anything handy to use around here. Give  me a day or so to come up with something, and i'll let you know. thanks

Here's what I got.
1. Sitting all night in the driveway......12.73V
2. Accessory switch on......................12.42V
3. Engine running............................  14.42V
4. Engine running with fan on.............12.99 to 13.50 jumping around
5. Engine running with everything turned on with fan running 13.50.

I don't know what to do. It acts like an electrical problem. There is a winch on the bike, I even unhooked it from the battery to see if that was the problem. I'm going out after bit to see if it will do it again pulling the grade. Thanks.

LOL,,, Just when I thought I was done. My wife took the RZR out on the ridge today, and there is a long uphill grade on our ridge about a quarter mile long. Darn near every time we try to go up this grade the bike will just loose power and start missing, you have to let off and keep working the throttle to get to the top and it will level out and run fine. It doesn't quit, like it's out of gas, just misses. It ran fine around here today. But when she went out on the dirt road to see the neighbor it acted up on the same hill that it acted up on me before. I'm going to check the TPS voltage again. Any ideas where to look. It only seems to do this problem going up a long grade out on the ridge at about 30 MPH.   :?