What happens if you put in the wrong oil?

Okay so I have a 2006 Yamaha Blaster 2 Stroke fourwheeler and it needed some more oil, it automatically injects the oil with the gas on its own. My step dad told me to put in Motul 800 Factory line offroad 2t oil. While I was out riding my quad starts burning up and just dies. When I try to restart it, it has no compression. Later we look at the oil canister and it says premix only. What happens if you put premix only oil, into an auto oil injected fourwheeler?