any machine will last a long time if well maintained and tuned right.
thanks for the info, but I am not real sure what you mean about the bearing on top of the piston. And as far as taking care of the machine, I am all for that
As far as I know, the engines are identical for all years. The only functional change through the whole lifespan was the addition of real brakes in 2003 and newer models.
They can be reliable, although it seems like lots of people on this blow them up fairly regularly. I've only had mine for one season, but I beat on it pretty hard and it never missed a beat. They are very, very simple machines, which is a huge plus in my opinion. My piston bearing is getting worn out though