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Discussion Starter · #1 ·
I recently bought a 2011 Polaris sportsman 800 with a blown motor, I’ve taken it apart and ordered what I know I need. But before re assembling I’d like to know if my oil pump works, how can I test this?
 

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Discussion Starter · #3 ·
I've never tried it but you might try spinning it with a drill?
Let us know what you find
I don’t exactly understand how the pump works, but it just sounds “off” to me, it sounds kinda like a skateboard wheel when I turn it fast but for all I know that could be how it’s supposed to sound. Here’s a video of it “ YouTube. ”
 

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When you originally said "test" I thought you meant still in the case lol
There's no "test". Just inspect and measure clearances and replace any worn parts... .006" max on the rotor tips
 
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