My 2002 Riot seemed to start running on one cylinder on Saturday and when I tried to give some gas to make it up a small hill on the trail... it clunked a bit and then blew... absolutte grenade under the cover. just a little over 600 kms but warranty was up in October 2020. One of plugs looks like it was hit by the piston and closed the gap. Posted on facebook last night to learn of at least 10-20 other 2020 or 2021 Riots blowing up or having injector and mapping issues. Wondering if Arctic cat will do anything... going to to dealer this morning. This is not right! Spend this kind of money to have the engine blow with a little over 600 kms.