Need some advice please. I’ve got a px125e with a Malossi 166 kite installed. After a year or so had a couple of heat seizes which resulted in the piston sounding quite rattely. So I took it apart and examined the piston, barrel and head and found no damage. So I began to put it back together and found I couldn’t get the barrel over the piston ( the rings in particular) So my first question is why is it so difficult to get the kit back together? the second is, should I get new piston rings because of the heat seizes?
Any advice appreciated cheers.