I ride trails all the time with my yfz. I just have issues with soupy mud holes, in which I have seen even can ams with 31 inch tires get stuck. But other then that I can go anywhere other bigger quads can go and with better speed. I guess I will never understand why people have this belief that yfz's can not be used as trail quads.
I love the agility of the yfz, I love it when people tell me I can't trail ride with my yfz and when we do go trail riding I get through tough areas and bigger quads get stuck lol. Doesn't happen all the time but even if I did get stuck I just pick up the bike and push it forward.Mine sits 7 3/4 inches off the ground when I'm sitting on it. its not stock lol