hi everyone im new to the nsr,and have just bought one with a full apex tuned engine with tyga gp pipes.the bike goes very well and im impressed with it [which is good as i raced a tz last year].Anyhow its done 250 miles since a full rebuild and im just wondering when it should be due pistons and rings,im hoping its not going to be as often as a tz.Any help or recomendations will be helpfull please.