Hi everyone, first post, im french so sorry for my bad english. I have a 2021 axys 850 patriot and i have a question. For the past years sled is very good and never had a problem, last day i went for a 140km ride. Rpm was good at the begin of the day, 8200 and when im at 10-40 kmh and i wot it go to 8200. But the problem is when i ride long distance on lake at 70-80 kmh and then i wot the rpm go to 7800 and then 7500 and 7200~ .. if i stop and wot again it goes to 8100-8200 again. Compression is 125psi each side. Spark plug are new. No engine light. Belt deflection good, spring in primary clutch is new. I did clean the exhaust valve they were very dirty, i remove the cable from the servo motor and took it into the table to clean it. Do i need to relearn the exhaust valves ? Why the problem is not constant. Again sorry for bad english. Thank you guys...
