Hey all, first time poster, long time reader. I was riding renshaw today on my new xm 163 and had a bit of an issue. Sled wasn't able to consistantly build power. I know it's gotta break in and but every so often it would derate to 4000 rpm and stutter. Any feedback (besides should've bought a cat/Polaris/yam) is strongly appreciated. Hoping to ride again tomorrow but if I can't figure it out I gotta cut the trip short. Thanks all.