I had this idea of teaching my kids to ride so I bought small dirt bikes for them, both hondas 50 cc and 80 cc. They have been riding at local off-road place where I take them regularly. But they became bored riding the same circuit where I can watch them. Now I want to buy a bike for myself so we can ride farther together. don't want a big bike but just big enough so my daughter can transition to it after she grows from her 80cc. so, I found this Yamaha yz85 two stroke. but this is more of motocross racing bike. I've never owned 2 stroke. What are the considerations buying one for a long term? are they capricious? need a lot of maintenance? what is reliability like? and what to look at when buying used one?