I purchased a new 2006 Polaris HO 500 Sportsman.  It came with Polaris custom aluminum rims and radial tires.  A few days after I broughty it home both front tires were soft.  I checked with the dealer and he said tires are not covered under the warranty but he sent the one tire out for repairs.  There were no holes but they resealed the bead.  I continue to experience problems and have had to have the bead resealed over and over.  I am told dirt keeps getting into the bead and then the tire loses pressure.  I am told it is just a poor rim design, although the dealer keeps telling me no one else is having any problems.  I have started to run a little more pressure, around 10 lbs.  It seems to be helping a bit but I contine to lose pressure.  Is anyone else experiencing similar problems and if so what have you done to correct the problem?  

use Slime to correct the problem.

there is a product called "slime" sold most everywhere,i think walmart even carries it.
it'll fix you up  

I have the same problem I have a 2007 x2 500. have you tryed the slime?  

I had the same problem with my 2006 500 EFI. When I complained about it I was told that the tires that came with were junk, but weren't covered under warranty. I have plugged them many times and used slime but all four tire still go soft. Is there anything that works properly on a Polaris? Just junk. I used a Yahama 2000E Trike for about fifteen years and never had as much problem with it during those many years as I have had with my Polaris in two years.

Isaac3  

I have an '07 Polaris 500 HO 2x and have had the same issues. I also have the custom aluminum wheels and have already burned through the stock Carlisle's. I bought ITP Mudder Lites and have had issues of not just keeping air in the tires but also tearing sidewalls in one.
The last trip I went out on, I rode into a rut which put me in an extreme right angle and my rear tire simply fell off the bead. We had to put the machine on its side while trying to put air back in and pulling against the rim. We got it back on the trail but I was loosing air faster than I ever had.
I have used Slime as well and that seemed to work for a while but I always seem to have tire issues on the trail. My brother in law bought the same machine in the 450 (carburated) at the same time and still has his original tires. Could this be an issue with the 2x??
Thanks for any input!  

Replace the valve cores in the stem, and put new caps on them. Can't hurt, and very inexpensive. The more air pressure in the tires, they are more rigid and harder to puncture, but they get less traction. The less pressure, the more traction, but easier to puncture. For more extreme riding,(rocky, jagged,trenched,) beadlocks are  the only way  to get better traction while keeping the tire on the rims. Have fun.  

Sorry forgot some info. I run ITP Holeshots on Douglas rims on my Raptor 660 and my son's 300EX.We have had no trouble with either one.