I recently bought a Grizzly that was sitting for a little and in my other post on here I told how I got it running. I ended up buying a brand new carb as my other one had been messed with and I wanted to be sure everything would work properly. It’s about 20 degrees out and I’ve been riding in the snow. First ride the bike backfired twice at low speed/low throttle when letting the gas off. Second ride it did the same thing once. It was sitting for a few months, what would likely be the cause? New plug, brand new carb, air filter is clean. Bike has 450 hours on it and idles, drives, and accelerates well other than that occasional backfire.