Hi Brandon79, thank you for your response and the compliments on the quad. The side of the head says M 13. I have attached a photo of it.
Another thing I forgot to mention is that he said he is running 116 octane in it as that’s what it is jetted for. I can attest that when you hit the throttle this thing is a rocket. I had an 05 before that had the motor done but not to this extent and I can tell you that I thought that one ran pretty good but this one would definitely eat it alive. 116 just seems high to me. Sorry for all the questions, I am pretty knowledgable on everything on these except for anything with engine/performance. Engine work I have always had somebody do.