are all ff97 flywheels created equal? i have a 99 sportsman 500 and need a flywheel

 

See if this listing for one helps.Shows models applicable at the bottom.
http://www.ebay.com/itm/Polaris-ATV-New-OEM-Flywheel-Magneto-Sportsman-Ranger-Magnum-Scrambler-500-/190852258529?hash=item2c6fae5ae1&vxp=mtr Plus another listing shows basically the same thing.http://www.ebay.ca/itm/00-POLARIS-SP...3D331635861639
But appears neither may fit your 99 model. Here's the interchangeable list from Polaris parts on the 99 Sportsman 500.
3085558 (substituted by 3086819)

Year Product Model Assembly
1999 ATV BIG BOSS 500 6X6 MAGNETO - A99AE50DA (4949204920e008)
1999 ATV INTL BIG BOSS 500 6X6 MAGNETO - A99AE50DA (4949204920e008)
1999 ATV SCRAMBLER 500 MAGNETO - A99BG50AA (4949714971d012)
1999 ATV MAGNUM 500 MAGNETO - A99CD50AA (4949254925D014)
1999 ATV SPORTSMAN 500 RSE MAGNETO - A99CH50AC (4952455245e002)
1999 ATV SPORTSMAN 500 MAGNETO - A99CH50EB (4949114911e003)
1999 ATV SPORTSMAN 500 MAGNETO - A99CH50EB (4949114911e003)
1999 ATV WORKER 500 MAGNETO - A99CH50EB (4949114911e003)
1999 ATV WORKER 500 MAGNETO - A99CH50EB (4949114911e003)
1998 ATV NORWEGIAN BIG BOSS 500 6X6 MAGNETO - W98AE50A (4946394639e008)
1998 ATV Swedish Big Boss 500 6X6 MAGNETO - W98AE50A (4946394639e008)
1998 ATV BIG BOSS 500 6X6 MAGNETO - W98AE50A (4946394639e008)
1998 ATV SCRAMBER 500 MAGNETO - W98BC50A (4944994499d012)
1998 ATV SWEDISH SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SWEDISH SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SPORTSMAN 500 MAGNETO - W98CH50A(C)(D)(E)(F) (4950135013e004)
1998 ATV SPORTSMAN 500 MAGNETO SPORTSMAN 500 W98CH50A and W98CH50AB (4945714571E001)
1998 ATV SPORTSMAN 500 MAGNETO SPORTSMAN 500 W98CH50A and W98CH50AB (4945714571E001)
1997 ATV SCRAMBLER 500 MAGNETO Scrambler 500 W97BC50A (4943074307D012)

May have something to do when they changed from a 200 to 250 watt alternator.

 

Can anyone tell me if the 99 Magnum 325 flywheel will fit my sportsman 335 without effecting functionality? I found one about an hour away for a reasonable price. I do not want to to drive 2 hrs for it to not work. The magnets are gone in the current flywheel. My Uncle is a retired Veteran with only one leg and he uses the wheeler to check his mail and drive around the property. I elected to repair it after some teenagers took it through a creek. I have replaced front diff, ignition coil/plug, bendix, starter, CDI, and pickup coil, battery, solenoid, choke cable, oil cooler, and gas tank... . After agreeing to a minor repair only...as I was told the only issue was the fuel system needed to be cleaned, starter was sticking, and new battery. Now, I am low on funds and NEED a reasonably priced part to complete the repairs. If you have any solutions please reply. Thank you!