hi. im new here, on this forum anyway. ive had a yamaha tw125 for about 6 months and its great but im going to give it to my girlfriend and get a tzr125 as i hear they are a veryfast and cheap 125. however the 1 i am getting is the '88 model and has not got the full ypvs on it, i understand you can put one on but what do i need to get and how do i put it on and what difference does it make anyway. any other info about the tzr will also be much appreciated. thanks. jak

just peg open the power valve