tdr18

Hi, i have a tdr 125-1998y.JAPANESE W. i was told that the barrel on a 1998 has a nicasil sleeve and that it useses a flat top piston.It has 33,000 and i want to change the piston and piston rings,can anybody help me since i cant find enywhere a servis manual for tdr 1998,i bought the bike when it had 30,000.please exuase me for my english I come from bosnia ,the guy that i bought the bike didnt change anything,i would also like to know on how many kilometers do i have to change the piston and rings again 10,000 - 20,000 ? i would be wery thenKful if anyone can help.

Hi, i have a tdr 125-1998y.JAPANESE W. i was told that the barrel on a 1998 has a nicasil sleeve and that it useses a flat top piston.It has 33,000 and i want to change the piston and piston rings,can anybody help me since i cant find enywhere a servis manual for tdr 1998,i bought the bike when it had 30,000.please exuase me for my english I come from bosnia ,the guy that i bought the bike didnt change anything,i would also like to know on how many kilometers do i have to change the piston and rings again 10,000 - 20,000 ? i would be wery thenKful if anyone can help.