The reason I was asking is that I pulled the exhaust off the bike and had a look up the ports. There is some small vertical marks on the piston and bore of the barrel (I'm assuming rings need replacing at the very minimum). The marks don't look major but I wasn't sure at what point a barrel may need to be re-coated - it's expensive and of questionable quality here in Aus. Can anyone give me any pointers or direct me to a post on barrel and piston diagnosis?
I'm having fun with this bike but, as someone else recently posted, it's a somewhat frustrating and expensive process getting it to the point where I will be happy with it's running condition.
Much obliged,
Jim