When I checked and adjusted my valves I used 2011 Sportsman 850 service manual PN 9923067. I set my valves to these numbers and machine now runs perfect. I found this in Maintenance section 2 pages 2.14 and 2.15. I would suggest you buy the service manual for your machine as it takes you step by step in great detail. It was the best money I spent for my machine and not just for this job.
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