Well I guess the years of playin in the mud are catching up with my sportsman. I was out over the weekend and ended up overheating it. The cause was the radiator fan. I don't think I hurt the motor at all but I am checking it as well. I am in need of a fan motor I priced one thru my local dealer $200.00 which isn't that bad but does anyone know if these motors can be rewound or are they throw away motors. Another question is does anyone make a big bore kit for the 500HO if so could ya send me a link or just a name. Thanks for any help.

 

try taking it apart and cleaning the brushes with contact cleaner, thats all it needs.

 

I have a used one from a 99 sport that is probably the same that I would sell you for half that. PM me if you don't get your problem resolve and want to buy mine.

 

Thanks for the help guys. How about the big bore kit? Does anyone make these or not? I have thought about and got the OK from the boss(wife) to get a new machine but I don't really have a need for one right now. I kinda want to trick this one a little bit before I get into the payment plan again. I just got the Bi-Claw\Tri-claw Magnums on it and a EPI BigFoot clutch kit I am looking for MORE power out of the motor. Thanks Again

 

Do a search in the polaris forum for 'cooling fans' and you will find that WELXA has a 1-800 # for a offroad place that has the fans for $77 delivered to the house. The fan is made by Spal. I purchased one last month and saved over $120.

 

Here is the information:

The fan part# is 30100515 (this is the fan # that Polaris changed to sometime in 2000, and is still currently using).
Keith (contact at offroadwarehouse)
800-341-7757 8-5 m-f PST (his phone and hours)
www.offroadwarehouse.com (this is the website, but doesn't list the above fan part#) It took quite a bit of searching to locate the fan part #, and he has to order it from Spal). I think the fan is around $80. Two different Polaris dealerships quoted from $150 to $230 (without tax) on the exact same fan. It comes with fan blade and all.

 

it's a mechanical problem, ALL dc motors use brushes that accumumulate build up. Before you spend the money for a new one try cleaning it.

 

Mickey Dunlap at 4 stroke tech has a 600cc and 628cc big bore kit